Biology ch3-2

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Transcript
00:00:00Hello, Cycle 1, my HSC 26 batch, today is the second class.
00:00:12On the first day, you have started a chapter with me,
00:00:17which is roughly a chemistry 7 in biology.
00:00:22And today, I will try to take that chemistry 7 in biology
00:00:27to another level.
00:00:32Is everything okay?
00:00:34Is the sound okay?
00:00:36Is everything okay?
00:00:41I will take you and go now.
00:00:45The car is moving in Sisimpur.
00:00:53Oh sorry, I am live.
00:00:56The car is moving.
00:00:58Can't you sing if you are live?
00:01:00Can you go?
00:01:02I have come in 2026, right?
00:01:07Okay, okay.
00:01:09Tell me how are you?
00:01:11Is your body and mind good?
00:01:13And Nandu Dutta, thank you.
00:01:17I am blushing.
00:01:22The subject I will study today,
00:01:24I mean, cell chemistry,
00:01:26what will I say,
00:01:28actually,
00:01:30while studying cell chemistry,
00:01:32this is cell chemistry,
00:01:34lecture no. 2, chapter no. 3,
00:01:36today is the second lecture.
00:01:38Today, there is a surprising thing for you.
00:01:41This book, I have kept this book.
00:01:44Believe me, my son,
00:01:46this book is a chapter of 41 pages.
00:01:52A chapter of 41 pages.
00:01:55What will happen?
00:01:57What will happen?
00:01:59So now,
00:02:01if there is something to be afraid of,
00:02:04then we have to study this.
00:02:07And to study this,
00:02:09you need a strong desire.
00:02:11Online,
00:02:12that is the most fun.
00:02:14I am not online and offline at the same time.
00:02:16So what happens in the offline class,
00:02:18to attract the student's attention,
00:02:21the teacher has to do a lot of physical exercise.
00:02:24But online,
00:02:26the place for that physical exercise is a little less.
00:02:29See, if I study at the same place,
00:02:32what I can take from online,
00:02:35actually, I can take a lot from online.
00:02:37And what I can't,
00:02:39I can't do it either offline or online.
00:02:41So those of you who have joined us in biology,
00:02:46joined us in biology,
00:02:49you have to clear your admission.
00:02:53Our main journey now is admission.
00:02:56The story I want to tell you before I start,
00:02:59I have kept a note here today.
00:03:01Because you can't do anything without a note.
00:03:03And since I have kept a note in front of you today,
00:03:07I will share a part of the class note with you.
00:03:13And you know that for you,
00:03:15I am trying to make a program,
00:03:21I am trying to make a website.
00:03:23The website will be able to manage the student.
00:03:26If any of your batch mates join later,
00:03:30they can see the whole course at once.
00:03:33I want to go to this system.
00:03:35So I am waiting for you.
00:03:37You have given a lot of beautiful notes in the past.
00:03:40I thank you from the bottom of my heart.
00:03:43I want to thank you from the bottom of my heart.
00:03:48You have given such beautiful notes.
00:03:51I can't explain it to you.
00:03:53This is absolutely beautiful.
00:03:55I have been looking at the notes for a few days.
00:03:58And the notes have become so beautiful.
00:04:00I thank you all.
00:04:03Those of you who have started giving notes,
00:04:06thank you all.
00:04:08And those who have not yet given a note,
00:04:10they will give a note in front.
00:04:12Keep this tradition.
00:04:14Keep this tradition.
00:04:16And I want to take you home from the very beginning.
00:04:22From the very beginning.
00:04:24So if you have to go home from the very beginning,
00:04:27you have to be together with me.
00:04:30And somehow,
00:04:32Tanvir, you have to give the notes in public live.
00:04:35Habize Rahman Pranto.
00:04:37Listen with love.
00:04:39Where will you give the notes?
00:04:41In the public group.
00:04:43We have a Fahad's Tutorial public group.
00:04:46If you post in that group,
00:04:48I will pre-approve you.
00:04:50We want to decorate this group with a class.
00:04:55And I will open a discussion group for you tomorrow.
00:04:59If you have any questions about biology,
00:05:02If you have any questions about biology,
00:05:05If you have any questions,
00:05:07If you feel anything,
00:05:09You will let me know in the discussion group.
00:05:12So here,
00:05:14The chapter that I will read today,
00:05:16Today, the forehead does not catch fire.
00:05:19Today, the forehead does not catch fire.
00:05:21Please,
00:05:22By the grace of Allah,
00:05:24Today I will read,
00:05:25Today I will see what story is in front of me.
00:05:27My uncle has made a PDF for you today.
00:05:31I will give you the weight of this PDF.
00:05:33You can say now,
00:05:34Sir, no money, no weight.
00:05:36What else will I buy?
00:05:37This PDF,
00:05:38If I share the link of this PDF with you,
00:05:40Then this weight will go in front of you.
00:05:42So we make the PDF of this weight.
00:05:46You have to make a PDF of each picture.
00:05:49So it's a big job.
00:05:50You will pay the cost.
00:05:52You will try,
00:05:53I will give you the PDF of this weight.
00:05:56So that you can experience a little.
00:05:58What will you actually do in front of the intermediate?
00:06:02So now say,
00:06:03Are you all ready?
00:06:05Are you ready from the heart?
00:06:07I am waiting for all of you.
00:06:09Tell me if you are ready from the heart.
00:06:21There is a weight in front of you.
00:06:24And surprise,
00:06:25Today is chemistry class.
00:06:27Are you ready?
00:06:29Sir, if there is a weight, you will not need a PDF.
00:06:31Listen,
00:06:33If there is a weight, you will not need a PDF.
00:06:35You have a weight.
00:06:36What will you do with the PDF?
00:06:37For PDF,
00:06:38Portable Documented File
00:06:40It is believed that those who do not have the resource,
00:06:42They will have it.
00:06:44Everyone, I am fine.
00:06:45Listen,
00:06:46The sound is fine.
00:06:47I am not feeling less.
00:06:50You increase the sound of your device.
00:06:54Nanda,
00:06:55Sadia,
00:06:56Are you ready?
00:06:57Ready Farzana?
00:06:58Tell me,
00:06:59Is the food ready?
00:07:02The food is ready.
00:07:07Abir has his weight.
00:07:09Okay, we started.
00:07:10Bismillahirrahmanirrahim
00:07:12Today,
00:07:13I will teach through weight.
00:07:15Today,
00:07:16There is no other way than weight.
00:07:18There is no other way than weight.
00:07:20I started one by one.
00:07:22Bismillahirrahmanirrahim
00:07:23But,
00:07:24I have not written anything like this in the past.
00:07:28Today,
00:07:29I will charge carbohydrate.
00:07:31And after today, there is an exam, I will give you the first exam, be ready, Bismillahir Rahmanir Rahim, I will give you an exam, today is the first exam, the questions of the exam are beautiful, the highest among you, go, I will give you an award, what award will I give?
00:07:51I will give you an award, I will give you an award, I will give you an award, I will give
00:08:06you an award, I will give you an award, I will give you an award, I will give you an award,
00:08:19I will give you an award, I will give you an award, I will give you an award, I will give
00:08:26you an award, I will give you an award, I will give you an award, I will give you an award,
00:08:33I will give you an award, I will give you an award, I will give you an award, I will give
00:08:40you an award, I will give you an award, I will give you an award, I will give you an award,
00:08:47I will give you an award, I will give you an award, I will give you an award, I will give
00:08:54you an award, I will give you an award, I will give you an award, I will give you an award,
00:09:00I will give you an award, I will give you an award, I will give you an award, I will give
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00:09:58I will give you an award, I will give you an award, I will give you an award, I will give
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00:13:22you an award.
00:13:52Adiba, I can see that the sound is clear.
00:14:02Adiba, I can see that the sound is clear.
00:14:07What are you looking at?
00:14:10Nanda, I am going crazy.
00:14:14Sound should be clear.
00:14:17It can't be.
00:14:23Joshimuddin Aditya, there is no problem if you give the result of Holy Cross.
00:14:30Alif Maam, they have clear sound.
00:14:34Adar has clear sound.
00:14:36Tanvir has clear sound.
00:14:38Uma, why do you have less sound?
00:14:43Reshma Ishaidi, I can't hear your names.
00:14:47Let's go. We have come this far.
00:14:50What was the story of Manasekharita?
00:14:53The story of Manasekharita was,
00:14:55If there is 3 carbon, then the son of Mamur, his name is Trios.
00:15:00Now, the story of 3 carbon, his name is Trios.
00:15:05I don't know when it will end today.
00:15:08There is a lot of study. Study with me patiently.
00:15:11Study patiently.
00:15:13Look at this, Trios. What is the world of 3 carbon?
00:15:16Trios, this is the currency.
00:15:18The world of 3 carbon is called Trios.
00:15:21So, glyceraldehyde and dihydroxyacetone, these two are called Shorol Trios.
00:15:27Shorol, feel this a little.
00:15:29Feel this a little.
00:15:31Feel here a little.
00:15:33So, the number of aldehyde groups in the earth, do you remember the chemistry lesson?
00:15:38The number of ketone groups, all the groups are known as reducing sugar.
00:15:43Because, only aldehyde and ketone can be reduced.
00:15:48Only two can be reduced.
00:15:51Aldehyde can be reduced.
00:15:53Ketone can also be reduced.
00:15:55So, these are called reducing sugars.
00:15:59So, what can Trios be?
00:16:01One, aldehyde can be here.
00:16:05Another one can be ketone.
00:16:08We have learned so far.
00:16:09So, remember here, this is called reducing sugars.
00:16:16Reducing sugars.
00:16:18And I will give you a practice sheet of this chapter.
00:16:22Print the whole practice sheet.
00:16:24Print it and show me that you have printed it.
00:16:28All the MCQs and CQs in that practice sheet, if they practice, they will not need anything else in this chapter.
00:16:35Chapter is easy.
00:16:36But, there is a lot of information.
00:16:39Then, come.
00:16:41Then, Tetros.
00:16:43After Tetros, there is not much left here.
00:16:46This molecule is called Ribose.
00:16:49What is the name? Ribose.
00:16:51I will give you this link.
00:16:53I will give you the link of this book.
00:16:55Whatever I am printing here, you will print with me here.
00:16:58What is a significant sugar?
00:17:01Pentose sugar.
00:17:03What does pentose sugar mean?
00:17:045 carbon sugar.
00:17:06I am not printing this.
00:17:08I will give you the PDF of this printing.
00:17:10You do not worry.
00:17:12Which year? 1891.
00:17:15This will be tested.
00:17:17Which scientist invented this?
00:17:19Emil Fischer.
00:17:21This is a little print.
00:17:23Remember a little. Emil Fischer.
00:17:25The year is 1891.
00:17:27Since it is 5 carbon, then the sign of this is C5H10O5.
00:17:31So, the ribose has an aldehyde group in it.
00:17:35There is no problem with this.
00:17:37Now, the ribose that I am creating with is RNA.
00:17:42And the deoxyribose that I am creating with is DNA.
00:17:46So, what will be created with RNA?
00:17:48What will be created with RNA?
00:17:50With this ribose.
00:17:52Then, there is nothing important here.
00:17:56But the most important thing is
00:17:57The melting point of ribose is 95 degrees Celsius.
00:18:02Kindly note this.
00:18:04Medical Admission Test.
00:18:06Medical Admission Test.
00:18:08A little print.
00:18:10Medical Admission Test.
00:18:12The melting point of ribose is 95 degrees Celsius.
00:18:15Print.
00:18:22Rupa, is the sound okay?
00:18:24Is the sound okay?
00:18:26Sajid, can you give me a little bit now?
00:18:30Mithilesh, it won't be like that.
00:18:35Okay.
00:18:38Jami, I will show you.
00:18:41I will show you my voice.
00:18:43You don't have a voice, there is no problem.
00:18:45Juthir, the sound is clear.
00:18:47You don't do this.
00:18:49See, listen as much as you can.
00:18:50So, ribose.
00:18:52What will happen in this place?
00:18:54This ribose.
00:18:56Kindly note this.
00:18:58Ribose.
00:19:00In 1891.
00:19:02What is the name of the scientist?
00:19:04Emil Fischer.
00:19:06Kindly note this.
00:19:08The name of the scientist is Emil Fischer.
00:19:13Emil Fischer.
00:19:15What will be created with this?
00:19:17What will be made with this?
00:19:18What will be made with this?
00:19:20The name of this is RNA.
00:19:22The name of this is RNA.
00:19:24Emil Fischer.
00:19:26And how much is the temperature of this ribose?
00:19:30How much is the temperature of this?
00:19:3395 degrees Celsius.
00:19:37The temperature of this is 95 degrees Celsius.
00:19:40Kindly note this.
00:19:42The temperature of this is 95 degrees Celsius.
00:19:44These few lines are important.
00:19:45These few lines are important.
00:19:47These few lines are important.
00:19:49Kindly note this.
00:19:51Ok.
00:19:53Now,
00:19:55Today, we have studied a lot.
00:19:57We have studied a lot.
00:19:59Now,
00:20:01There is something special about ribose.
00:20:03It is like a white colour.
00:20:05It is like a grain.
00:20:07It is like glucose.
00:20:09And what kind of food is it?
00:20:11It is sweet.
00:20:13That is why it is called sugar.
00:20:15I will give you the link of the book.
00:20:17You will get it.
00:20:19No problem.
00:20:21You can mix it with water.
00:20:23No problem.
00:20:25Ok.
00:20:27Now, glucose and fructose.
00:20:29The two are the same.
00:20:31Why?
00:20:33Because the sign of glucose is C6H12O6.
00:20:35And the sign of fructose is C6H12O6.
00:20:37And the sign of fructose is C6H12O6.
00:20:39But there is a difference.
00:20:41But there is a difference.
00:20:42You have to experience this sign.
00:20:44One sign is aldehyde group.
00:20:46Because of glucose.
00:20:48And the other sign is ketone group.
00:20:50Because of ketone group.
00:20:57Jyothi, are you clear?
00:20:59Are you ok?
00:21:01Can you do it?
00:21:03Perfect.
00:21:05Perfect.
00:21:07Jyothi?
00:21:09Ok.
00:21:10Shambhu?
00:21:12Mithilesh?
00:21:14Concentrate.
00:21:16Now, in practice.
00:21:18I will show you exactly.
00:21:20I will show you exactly.
00:21:22In cycle one.
00:21:24You have joined.
00:21:26You are my future.
00:21:2826 batches are my future.
00:21:30Keep this in mind.
00:21:32You have to do like this.
00:21:3526 batches are my future.
00:21:41Ok, done?
00:21:43Done?
00:21:45Clear sound?
00:21:47Ok.
00:21:49Sound is clear.
00:21:51Ok.
00:21:53Confectionary means.
00:21:55Where glucose is produced.
00:21:57Like sugar.
00:21:59There is another sign here.
00:22:01There is another sign here.
00:22:03Keep this in mind.
00:22:05After 109.
00:22:07This is 7.
00:22:084.
00:22:105.
00:22:124.
00:22:143.
00:22:162.
00:22:181.
00:22:20Chhota.
00:22:29Crush.
00:22:31Ribose.
00:22:33Oxiribose.
00:22:35Khuva.
00:22:36There is a mistake here. I was trying to feel where is the 8th page.
00:22:42This is deoxyribose.
00:22:45This is deoxyribose. Why am I saying deoxyribose?
00:22:49See, see with me. Deoxyribose.
00:22:53Why is it deoxy? Deoxy means no oxygen.
00:22:59Deoxy means no oxygen.
00:23:04Where is it?
00:23:06There is no oxygen in the 2nd carbon.
00:23:11There is no oxygen.
00:23:13Ok.
00:23:14There is no oxygen in the 2nd carbon.
00:23:17Feel this.
00:23:20There is no oxygen in the 2nd carbon.
00:23:23Why is there no oxygen in your body?
00:23:25My body is called Abul Hasan Sar's body.
00:23:28You don't have to worry about your body.
00:23:31Just listen to me.
00:23:33Ok.
00:23:34Then,
00:23:36pay attention here.
00:23:38Ribulose.
00:23:39One is ribose and another is ribulose.
00:23:41So, what is ribose?
00:23:43Pentose sugar.
00:23:44This is also pentose sugar.
00:23:46Kisaccharide, monosaccharide.
00:23:48Why?
00:23:49What group is there in this?
00:23:50Keto group.
00:23:51What was before?
00:23:52Ribose was there.
00:23:54What group was there?
00:23:55Aldehyde.
00:23:56So, the name of this is ketopentose.
00:23:58The word is ketopentose.
00:24:00Why?
00:24:01Because of the ketone group.
00:24:03And because of the 5 carbon.
00:24:06You don't need anything else.
00:24:08You don't need anything else now.
00:24:10This is written here.
00:24:11Ribulose.
00:24:121,5-diphosphate.
00:24:13This is botany.
00:24:15When you come to me in cycle 3,
00:24:18the concept of botany's 9th chapter.
00:24:22The concept of botany's 9th chapter.
00:24:26Tell me, what is the name of this group?
00:24:34Did you get it?
00:24:35Mithu?
00:24:36Did you get it?
00:24:45Agulasansar's book?
00:24:46No problem.
00:24:50PCMB got 49 stars.
00:24:51EBI got 59 stars.
00:24:52From Fatima Akhtar's AD.
00:24:55Ase ase, akida tavasum jumu asere sona.
00:25:01Eba ray.
00:25:02Eba ray.
00:25:03This is written here.
00:25:05Ribose and deoxyribose.
00:25:08So, I understand very well
00:25:10that ribose has oxygen.
00:25:13That is why it is a compound on RNA.
00:25:15And this is a compound on DNA.
00:25:18Remember one thing.
00:25:20If it is sold with carbonate seal,
00:25:22remember this.
00:25:23If it is not in the test,
00:25:25it is called far-fural acid.
00:25:28Just remember,
00:25:29it does not need to be mixed with anything.
00:25:31It is labellinic acid.
00:25:33In no way,
00:25:34it is related to the test.
00:25:36There is no need to be familiar with it.
00:25:40Oxygen compound.
00:25:41How many oxygens are there in anabic compound?
00:25:43Five.
00:25:44But there is not one oxygen here.
00:25:46That is why there are four oxygens.
00:25:48In the same way,
00:25:49there are two kinds of carbon compounds
00:25:51with OH group.
00:25:52Both carbon compounds have oxygen.
00:25:55So, this can be included in your test CQ.
00:25:59It can be included in your test CQ.
00:26:02I will give you this label.
00:26:05Don't worry.
00:26:06Eba ray.
00:26:08Eba ray.
00:26:09What is the name?
00:26:10Glucose.
00:26:11Glucose.
00:26:12Monosaccharide.
00:26:13Where did I say?
00:26:14Here.
00:26:15That is called glucose.
00:26:17So, when we talk about glucose,
00:26:20we have to remember the name of the food.
00:26:23That is called fructose.
00:26:28Fructose.
00:26:29So, one,
00:26:30that is called glucose.
00:26:33Another name,
00:26:35fructose.
00:26:37The chemical sign of these two compounds is
00:26:41C6H12O6.
00:26:44But, to be clear,
00:26:46glucose has a CHO bond.
00:26:49And fructose has a CO bond.
00:26:53This is important.
00:26:55Now,
00:26:56what will be included in MCQ?
00:26:58It will be included in MCQ,
00:27:00this glucose.
00:27:02100 percent.
00:27:04Remember,
00:27:05this glucose
00:27:08can be found in ripe fruits and honey.
00:27:12Stem.
00:27:13You will need to plant it.
00:27:15You will need to plant it.
00:27:17In ripe grapes,
00:27:19its amount is 12 to 30 percent.
00:27:22It is included in MCQ.
00:27:25In ripe grapes.
00:27:27Ripe grapes.
00:27:28Grapes.
00:27:29Its English name is grape.
00:27:31What is the English name of grapes?
00:27:33Grape.
00:27:34So, the sugar that is present here,
00:27:36its name is grape sugar.
00:27:39Grape sugar.
00:27:40It will be included in MCQ.
00:27:43Who is grape sugar?
00:27:45Now, I will say,
00:27:46grape sugar is glucose.
00:27:49Today's exam,
00:27:50I will see how much you pass.
00:27:52Today's exam,
00:27:53I will see how much you pass.
00:28:00Farzana Islam Neetu,
00:28:01listen,
00:28:02why don't you register this phone?
00:28:06I will definitely give you the PDF.
00:28:09Mithilesh,
00:28:10today's exam will be held.
00:28:11Today.
00:28:12Today's exam will be held.
00:28:13The exam will be based on what I am teaching.
00:28:16Then see,
00:28:18you won't need it.
00:28:19You won't need this much.
00:28:20You can pass the CQ exam.
00:28:23Glucose usage.
00:28:25This comes after CQ.
00:28:29What?
00:28:30According to the patient's method,
00:28:32a lot of glucose is used.
00:28:34What does method mean?
00:28:35Method means medicine.
00:28:37Medicine.
00:28:38If the patient becomes weak,
00:28:40then it is needed.
00:28:43Then,
00:28:44in medicine,
00:28:45what is its name?
00:28:46Calcium gluconate.
00:28:49In pharmacy.
00:28:50Pharmacy.
00:28:51For this pharmacy,
00:28:53when medicine is needed,
00:28:54its name is
00:28:56Calcium
00:28:58Calcium gluconate.
00:29:00Calcium gluconate.
00:29:01At one time,
00:29:02I think a lot of studies will be done here.
00:29:04It will be fine.
00:29:05Don't worry.
00:29:08Here,
00:29:09in this place,
00:29:11Sorbitol is made.
00:29:13Sorbitol.
00:29:14To make it,
00:29:15what is needed?
00:29:16Glucose.
00:29:17This can come in your board MCQ.
00:29:20Sorbitol is made.
00:29:22There is another word,
00:29:23Glycolysis.
00:29:24Here,
00:29:25remember,
00:29:26Glycolysis,
00:29:27this word means,
00:29:29the breakdown of glucose.
00:29:34The breakdown of glucose.
00:29:36Glycolysis means,
00:29:37the breakdown of glucose.
00:29:41That's it.
00:29:42That's all.
00:29:43What you are writing now,
00:29:44this will be useful for your medical admission.
00:29:48What you are writing now,
00:29:50what you are writing in the board,
00:29:52what you are writing,
00:29:53and what you are noting,
00:29:55in every cycle,
00:29:56the game will run in the same way.
00:30:01In every cycle.
00:30:04Will you give me something for the highest?
00:30:07The exam will be in MCQ.
00:30:09Yes.
00:30:10Raisa,
00:30:11I won't give you.
00:30:12I won't give you.
00:30:13Go.
00:30:16Can't you listen?
00:30:20Ah.
00:30:21Okay.
00:30:23Hmm?
00:30:24Okay.
00:30:29Okay,
00:30:30I will give you.
00:30:31I will give you.
00:30:32Okay,
00:30:33when the cell chemistry quiz will be done,
00:30:35you will remember,
00:30:3625 questions.
00:30:37There will be a face like this.
00:30:39There will be a face like this.
00:30:41Be careful.
00:30:42Be careful.
00:30:44HSC 2026.
00:30:47Koshrasayan.
00:30:48Fahad's tutorial.
00:30:50You can give the exam only once.
00:30:52There will be an option,
00:30:53start quiz,
00:30:54like this.
00:30:56There will be an option like this.
00:30:57When you start the quiz,
00:30:5926 minutes countdown will start.
00:31:02After one minute,
00:31:03you will give the detail,
00:31:05to whom you are giving the exam.
00:31:06And in 25 minutes,
00:31:07you will answer 25 questions.
00:31:09Let's see,
00:31:10how much you will pass.
00:31:11You can give the exam only once.
00:31:12And,
00:31:13as soon as you start the quiz,
00:31:15countdown will start.
00:31:18So,
00:31:19remember this.
00:31:20Okay?
00:31:24Ahem.
00:31:29Listen,
00:31:30keep your head down.
00:31:31How many exams are there?
00:31:32In front?
00:31:33Ahem.
00:31:34Maybe,
00:31:35if you photograph this PDF,
00:31:36it will be a little,
00:31:37difficult.
00:31:38I mean,
00:31:39what will happen?
00:31:40It will be a little difficult.
00:31:41The exam will be,
00:31:42exactly,
00:31:43tomorrow night at 9 o'clock.
00:31:45The exam will be,
00:31:46exactly tomorrow night at 9 o'clock.
00:31:49Ibnur,
00:31:51there are 40 questions in the PCMB.
00:31:53What did you do?
00:31:59Okay.
00:32:00Good, good.
00:32:02From Nusrat Pratik Khairi,
00:32:04to Abul Hasan Sir,
00:32:05Baikin Bapatani.
00:32:08I will give the PDF first,
00:32:09definitely.
00:32:10I will give the PDF first,
00:32:11then I will give the exam.
00:32:12Don't worry.
00:32:13Then,
00:32:14come here.
00:32:15How many days have I told you,
00:32:17about this thing?
00:32:18I haven't said anything yet.
00:32:19I will say this now.
00:32:20What is the structure of glucose?
00:32:22Ring structure.
00:32:23Remember,
00:32:24how many days have I told you,
00:32:25about the ring structure of glucose?
00:32:28I have shown you the structure,
00:32:30in a circle.
00:32:31I was talking about the chiral carbon.
00:32:33I was saying,
00:32:34okay,
00:32:35now see this.
00:32:36The glucose carbon number 1,
00:32:38and carbon number 5,
00:32:39come together.
00:32:41Why?
00:32:42Because,
00:32:43when they are mixed in water,
00:32:45then,
00:32:46an oxygen is formed in them.
00:32:48Isn't it?
00:32:49It is formed.
00:32:50So,
00:32:51what group is formed in carbon number 1?
00:32:52Hydroxyl group.
00:32:53Remember,
00:32:54I was saying this.
00:32:55There are two positions of carbon number 1,
00:32:57alpha,
00:32:58and beta.
00:33:00For this,
00:33:01the structure of glucose,
00:33:02changes.
00:33:03How does it change?
00:33:04I will tell you,
00:33:05a story about it.
00:33:07So,
00:33:08before giving this,
00:33:09see this carefully.
00:33:10One minute.
00:33:11One minute,
00:33:12see this.
00:33:131,
00:33:142,
00:33:153,
00:33:164,
00:33:175,
00:33:186.
00:33:19Next day,
00:33:20at 9 o'clock,
00:33:21there will be an exam.
00:33:22Exactly at 9 o'clock.
00:33:23Okay?
00:33:24Remember this.
00:33:25I will give the PDF
00:33:26after the class.
00:33:27Because,
00:33:28I am a little late.
00:33:29This is aldehyde.
00:33:30So,
00:33:31double bond O hydrogen.
00:33:32H,
00:33:33OH,
00:33:34OH,
00:33:35H,
00:33:36H,
00:33:37OH,
00:33:38H,
00:33:39OH,
00:33:40H,
00:33:41OH,
00:33:42H,
00:33:43OH,
00:33:44H,
00:33:45OH,
00:33:46H,
00:33:47OH,
00:33:48H.
00:33:49Now,
00:33:50do you remember?
00:33:51What happens?
00:33:52Hydroxyl of chiral carbon
00:33:54is attached to
00:33:56carbon 1
00:33:58and carbon 1.
00:34:00So,
00:34:01between carbon 1
00:34:03and carbon 5,
00:34:05there is an oxygen atom.
00:34:07Atom.
00:34:08What atom?
00:34:09Oxygen atom.
00:34:11Isn't it?
00:34:12Yes.
00:34:13Oxygen atom is formed.
00:34:15After that,
00:34:16when we write this,
00:34:18how do we write?
00:34:19We write,
00:34:201,
00:34:212,
00:34:223,
00:34:234,
00:34:245,
00:34:265,
00:34:286,
00:34:306.
00:34:32Now,
00:34:33think about it.
00:34:35Think about it.
00:34:37If you put hydroxyl of carbon
00:34:39on top,
00:34:41then,
00:34:42please keep in mind,
00:34:44its name is beta.
00:34:46What is its name?
00:34:48Beta.
00:34:49Please keep in mind.
00:34:50Now,
00:34:51above carbon 2,
00:34:52there is H.
00:34:53Below,
00:34:54OH.
00:34:55Above carbon 3,
00:34:56there is OH.
00:34:57Below,
00:34:58carbon 4,
00:34:59there is H.
00:35:00OH.
00:35:01Carbon 5,
00:35:02there is H.
00:35:03Carbon 6,
00:35:04there is CH2OH.
00:35:05This is beta hydroxyl.
00:35:07The word is
00:35:09beta
00:35:10hydroxyl.
00:35:12Do you understand?
00:35:14Beta hydroxyl.
00:35:16Do you understand?
00:35:20From Fatima Akhtarani,
00:35:22if you open a messenger group,
00:35:24the problem is,
00:35:25there is a lot of talk.
00:35:27So,
00:35:28the messenger group
00:35:29will distract
00:35:30your writing.
00:35:31Better discussion group
00:35:33than that.
00:35:34The messenger group
00:35:35that I opened earlier,
00:35:36all the students said,
00:35:37we will do some writing.
00:35:39But,
00:35:40here,
00:35:41there is a lot of
00:35:42running around
00:35:43for writing.
00:35:44Then,
00:35:45you will get angry
00:35:46and there will be
00:35:47distraction.
00:35:48You will
00:35:49not be able to
00:35:50focus or
00:35:51de-focus.
00:35:52I will open
00:35:53a discussion group.
00:35:54You will post
00:35:55and comment
00:35:56in that group.
00:35:57But,
00:35:58in messenger,
00:35:59Hi,
00:36:00Hello,
00:36:01Jantu,
00:36:02today I went
00:36:03shopping.
00:36:04You will not
00:36:05be able to
00:36:06run around
00:36:07for writing.
00:36:08Do you
00:36:09understand?
00:36:10Okay?
00:36:11Okay.
00:36:12Then,
00:36:13this is
00:36:14beta
00:36:15hydroxyl.
00:36:16Beta
00:36:17hydroxyl.
00:36:18What question
00:36:19did Abir Das
00:36:20ask?
00:36:21Will the
00:36:22exam be
00:36:23in the
00:36:24biology group?
00:36:25Gym?
00:36:26Of course,
00:36:27it will be.
00:36:28But,
00:36:29you did not
00:36:30see the
00:36:31question.
00:36:32Sir,
00:36:33the exam
00:36:34is tomorrow
00:36:35after two
00:36:36days of
00:36:37class.
00:36:38Yes.
00:36:39The exam
00:36:40is tomorrow
00:36:41after two
00:36:42days of
00:36:43class.
00:36:46Sir,
00:36:47the
00:36:48exam
00:36:49is tomorrow
00:36:50after two
00:36:51days of
00:36:52class.
01:05:48It has to be cute.
01:05:49It has to look like an egg.
01:05:513 inches above, 5 inches below.
01:05:5311 inches in the middle.
01:05:54Got it?
01:06:00Dilshad Jahan Sadia
01:06:02You eat fit biscuits now, Sadia.
01:06:11Okay, fine.
01:06:14Okay, fine.
01:06:15Everyone has a home in Parlehabad.
01:06:17One has a home, one has a land.
01:06:19What's the big deal?
01:06:20Am I opening a hospital or what?
01:06:22Go to the pharmacy, you devil.
01:06:24You don't have a name in Parlehabad.
01:06:26How can you be so mean?
01:06:27Hey, write!
01:06:31You can't do anything.
01:06:33Sambandh!
01:06:35Don't curse me.
01:06:36I'll hit you so hard,
01:06:38you'll see you're out of this world.
01:06:41Write.
01:06:45Okay.
01:06:46Zarif, why don't we go to the previous slide?
01:06:48You've seen it.
01:06:49You've seen it.
01:06:51Okay.
01:06:52Now,
01:06:54Now, show it to me.
01:06:56What's this?
01:06:57The Shukrooze collection.
01:06:58It's been so long.
01:06:59Son, I did this.
01:07:00I did this.
01:07:01The Shukrooze collection.
01:07:02What did I show you a while ago?
01:07:04C6.
01:07:05Look.
01:07:06C6.
01:07:07H12.
01:07:08H12.
01:07:09H12.
01:07:10H12.
01:07:11H12.
01:07:12H12.
01:07:13H12.
01:07:14H12.
01:07:15H12.
01:07:16H12.
01:07:17H12.
01:07:18H12.
01:07:19H12.
01:07:20H12.
01:07:21H12.
01:07:22H12.
01:07:23H12.
01:07:24H12.
01:07:25H12.
01:07:26H12.
01:07:27H12.
01:07:28H12.
01:07:29H12.
01:07:30H12.
01:07:31H12.
01:07:32H12.
01:07:33H12.
01:07:34H12.
01:07:35H12.
01:07:36H12.
01:07:37H12.
01:07:38H12.
01:07:39H12.
01:07:40H12.
01:07:41H12.
01:07:42H12.
01:07:43H12.
01:07:44H12.
01:07:45H12.
01:07:46H12.
01:07:47H12.
01:07:48H12.
01:07:49H12.
01:07:50H12.
01:07:51H12.
01:07:52H12.
01:07:53H12.
01:07:54H12.
01:07:55H12.
01:07:56H12.
01:07:57H12.
01:07:58H12.
01:07:59H12.
01:08:00H12.
01:08:01H12.
01:08:02H12.
01:08:03H12.
01:08:04H12.
01:08:05H12.
01:08:06H12.
01:08:07H12.
01:08:08H12.
01:08:09H12.
01:08:10H12.
01:08:11H12.
01:08:12H12.
01:08:13H12.
01:08:14H12.
01:08:15H12.
01:08:17not
01:08:34Aye aye, red is red's head. This is sugar. What's the other name?
01:08:39Sucrose. Aye aye, look. Sucrose.
01:08:42You don't understand. I don't understand.
01:08:44If you understand, I'll give you money. Okay, sir?
01:08:48Okay.
01:08:49Silence.
01:09:00Lemon, you fix your mind first.
01:09:04Otherwise, you'll go to hell.
01:09:06Silence.
01:09:08I don't have any respect for Mithu I.D.
01:09:12Even if your grandfather dies tonight,
01:09:14he won't die.
01:09:15I don't sing my songs.
01:09:17I don't sing my songs.
01:09:19I don't sing my songs.
01:09:20I don't sing my songs.
01:09:21I don't sing my songs.
01:09:22I don't sing my songs.
01:09:23I don't sing my songs.
01:09:24I don't sing my songs.
01:09:25I don't sing my songs.
01:09:26I don't sing my songs.
01:09:27I don't sing my songs.
01:09:28I don't sing my songs.
01:09:29I don't sing my songs.
01:09:30I don't sing my songs.
01:09:31I don't sing my songs.
01:09:32I don't sing my songs.
01:09:33I don't sing my songs.
01:09:34I don't sing my songs.
01:09:35I don't sing my songs.
01:09:36I don't sing my songs.
01:09:37I don't sing my songs.
01:09:38I don't sing my songs.
01:09:39I don't sing my songs.
01:09:40I don't sing my songs.
01:09:41I don't sing my songs.
01:09:42I don't sing my songs.
01:09:43I don't sing my songs.
01:09:44I don't sing my songs.
01:09:45I don't sing my songs.
01:09:46I don't sing my songs.
01:09:47I don't sing my songs.
01:09:48I don't sing my songs.
01:09:49I don't sing my songs.
01:09:50I don't sing my songs.
01:09:51I don't sing my songs.
01:09:52I don't sing my songs.
01:09:53I don't sing my songs.
01:09:54I don't sing my songs.
01:09:55I don't sing my songs.
01:09:56I don't sing my songs.
01:09:57I don't sing my songs.
01:09:58I don't sing my songs.
01:09:59I don't sing my songs.
01:10:00I don't sing my songs.
01:10:01I don't sing my songs.
01:10:02I don't sing my songs.
01:10:03I don't sing my songs.
01:10:04I don't sing my songs.
01:10:05I don't sing my songs.
01:10:06I don't sing my songs.
01:10:07I don't sing my songs.
01:10:08I don't sing my songs.
01:10:09I don't sing my songs.
01:10:10I don't sing my songs.
01:10:11I don't sing my songs.
01:10:12I don't sing my songs.
01:10:13I don't sing my songs.
01:10:14I don't sing my songs.
01:10:15I don't sing my songs.
01:10:16I don't sing my songs.
01:10:17I don't sing my songs.
01:10:18I don't sing my songs.
01:10:19I don't sing my songs.
01:10:20I don't sing my songs.
01:10:21I don't sing my songs.
01:10:22I don't sing my songs.
01:10:23I don't sing my songs.
01:10:24I don't sing my songs.
01:10:25I don't sing my songs.
01:10:26I don't sing my songs.
01:10:27I don't sing my songs.
01:10:28I don't sing my songs.
01:10:30I don't sing my songs.
01:10:31I don't sing my songs.
01:10:32I don't sing my songs.
01:10:33I don't sing my songs.
01:10:34I don't sing my songs.
01:10:35I don't sing my songs.
01:10:36I don't sing my songs.
01:10:37I don't sing my songs.
01:10:38I don't sing my songs.
01:10:39I don't sing my songs.
01:10:40I don't sing my songs.
01:10:41I don't sing my songs.
01:10:42I don't sing my songs.
01:10:43I don't sing my songs.
01:10:44I don't sing my songs.
01:10:45I don't sing my songs.
01:10:46I don't sing my songs.
01:10:47I don't sing my songs.
01:10:48I don't sing my songs.
01:10:49I don't sing my songs.
01:10:50I don't sing my songs.
01:10:51I don't sing my songs.
01:10:52I don't sing my songs.
01:10:53I don't sing my songs.
01:10:54I don't sing my songs.
01:10:55I don't sing my songs.
01:10:56I don't sing my songs.
01:10:57I don't sing my songs.
01:10:58I don't sing my songs.
01:10:59I don't sing my songs.
01:11:00I don't sing my songs.
01:11:01I don't sing my songs.
01:11:02I don't sing my songs.
01:11:03I don't sing my songs.
01:11:04I don't sing my songs.
01:11:05I don't sing my songs.
01:11:06I don't sing my songs.
01:11:07I don't sing my songs.
01:11:08I don't sing my songs.
01:11:09I don't sing my songs.
01:11:10I don't sing my songs.
01:11:11I don't sing my songs.
01:11:12I don't sing my songs.
01:11:13I don't sing my songs.
01:11:14I don't sing my songs.
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01:21:02I don't sing my songs.
01:21:03I don't sing my songs.
01:21:04I don't sing my songs.
01:21:05I don't sing my songs.
01:21:06I don't sing my songs.
01:21:07I don't sing my songs.
01:21:08I don't sing my songs.
01:21:09I don't sing my songs.
01:21:10I don't sing my songs.
01:21:11I don't sing my songs.
01:21:12I don't sing my songs.
01:21:13I don't sing my songs.
01:21:14I don't sing my songs.
01:21:15I don't sing my songs.
01:21:16I don't sing my songs.
01:21:17I don't sing my songs.
01:21:18I don't sing my songs.
01:21:19I don't sing my songs.
01:21:20I don't sing my songs.
01:21:21I don't sing my songs.
01:21:22I don't sing my songs.
01:21:23I don't sing my songs.
01:21:24I don't sing my songs.
01:21:25I don't sing my songs.
01:21:26I don't sing my songs.
01:21:27I don't sing my songs.
01:21:28I don't sing my songs.
01:21:29I don't sing my songs.
01:21:30I don't sing my songs.
01:21:31I don't sing my songs.
01:21:32I don't sing my songs.
01:21:33I don't sing my songs.
01:21:34I don't sing my songs.
01:21:35I don't sing my songs.
01:21:36I don't sing my songs.
01:21:37I don't sing my songs.
01:21:38I don't sing my songs.
01:21:39I don't sing my songs.
01:21:40I don't sing my songs.
01:21:41I don't sing my songs.
01:21:42I don't sing my songs.
01:21:43I don't sing my songs.
01:21:44I don't sing my songs.
01:21:45I don't sing my songs.
01:21:46I don't sing my songs.
01:21:47I don't sing my songs.
01:21:48I don't sing my songs.
01:21:49I don't sing my songs.
01:21:50I don't sing my songs.
01:21:51I don't sing my songs.
01:21:52I don't sing my songs.
01:21:53I don't sing my songs.
01:21:54I don't sing my songs.
01:21:55I don't sing my songs.
01:21:56I don't sing my songs.
01:21:57I don't sing my songs.
01:21:58I don't sing my songs.
01:21:59I don't sing my songs.
01:22:00I don't sing my songs.
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01:22:02I don't sing my songs.
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01:22:04I don't sing my songs.
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01:22:06I don't sing my songs.
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01:22:08I don't sing my songs.
01:22:09I don't sing my songs.
01:22:10I don't sing my songs.
01:22:11I don't sing my songs.
01:22:12I don't sing my songs.
01:22:13I don't sing my songs.
01:22:14I don't sing my songs.
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01:22:17I don't sing my songs.
01:22:18I don't sing my songs.
01:22:19I don't sing my songs.
01:22:20I don't sing my songs.
01:22:21I don't sing my songs.
01:22:22I don't sing my songs.
01:22:23I don't sing my songs.
01:22:24I don't sing my songs.
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01:22:26I don't sing my songs.
01:22:27I don't sing my songs.
01:22:28I don't sing my songs.
01:22:29I don't sing my songs.
01:22:30I don't sing my songs.
01:22:31I don't sing my songs.
01:22:32I don't sing my songs.
01:22:33I don't sing my songs.
01:22:34I don't sing my songs.
01:22:35I don't sing my songs.
01:22:36I don't sing my songs.
01:22:37I don't sing my songs.
01:22:38I don't sing my songs.
01:22:39I don't sing my songs.
01:22:40I don't sing my songs.
01:22:41I don't sing my songs.
01:22:42I don't sing my songs.
01:22:43I don't sing my songs.
01:22:44I don't sing my songs.
01:22:45I don't sing my songs.
01:22:46I don't sing my songs.
01:22:47I don't sing my songs.
01:22:48I don't sing my songs.
01:22:49I don't sing my songs.
01:22:50I don't sing my songs.
01:22:51I don't sing my songs.
01:22:52I don't sing my songs.
01:22:53I don't sing my songs.
01:22:54I don't sing my songs.
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01:22:56I don't sing my songs.
01:22:57I don't sing my songs.
01:22:58I don't sing my songs.
01:22:59I don't sing my songs.
01:23:00I don't sing my songs.
01:23:01I don't sing my songs.
01:23:02I don't sing my songs.
01:23:03I don't sing my songs.
01:23:04I don't sing my songs.
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01:23:06I don't sing my songs.
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01:23:09I don't sing my songs.
01:23:10I don't sing my songs.
01:23:11I don't sing my songs.
01:23:12I don't sing my songs.
01:23:13I don't sing my songs.
01:23:14I don't sing my songs.
01:23:15I don't sing my songs.
01:23:16I don't sing my songs.
01:23:17I don't sing my songs.
01:23:18I don't sing my songs.
01:23:19I don't sing my songs.
01:23:20I don't sing my songs.
01:23:21I don't sing my songs.
01:23:22I don't sing my songs.
01:23:23I don't sing my songs.
01:23:24I don't sing my songs.
01:23:25I don't sing my songs.
01:23:26I don't sing my songs.
01:23:27I don't sing my songs.
01:23:28I don't sing my songs.
01:23:29I don't sing my songs.
01:23:30I don't sing my songs.
01:23:31I don't sing my songs.
01:23:32I don't sing my songs.
01:23:33I don't sing my songs.
01:23:34I don't sing my songs.
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01:23:36I don't sing my songs.
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01:23:38I don't sing my songs.
01:23:39I don't sing my songs.
01:23:40I don't sing my songs.
01:23:41I don't sing my songs.
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01:23:43I don't sing my songs.
01:23:44I don't sing my songs.
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01:23:48I don't sing my songs.
01:23:49I don't sing my songs.
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01:23:52I don't sing my songs.
01:23:53I don't sing my songs.
01:23:54I don't sing my songs.
01:23:55I don't sing my songs.
01:23:56I don't sing my songs.
01:23:57I don't sing my songs.
01:23:58I don't sing my songs.
01:23:59I don't sing my songs.
01:24:00I don't sing my songs.
01:24:01I don't sing my songs.
01:24:02I don't sing my songs.
01:24:03I don't sing my songs.
01:24:04I don't sing my songs.
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01:24:13I don't sing my songs.
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01:24:17I don't sing my songs.
01:24:18I don't sing my songs.
01:24:19I don't sing my songs.
01:24:20I don't sing my songs.
01:24:21I don't sing my songs.
01:24:22I don't sing my songs.
01:24:23I don't sing my songs.
01:24:24I don't sing my songs.
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01:24:26I don't sing my songs.
01:24:27I don't sing my songs.
01:24:28I don't sing my songs.
01:24:29I don't sing my songs.
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01:24:32I don't sing my songs.
01:24:33I don't sing my songs.
01:24:34I don't sing my songs.
01:24:35I don't sing my songs.
01:24:36I don't sing my songs.
01:24:37I don't sing my songs.
01:24:38I don't sing my songs.
01:24:39I don't sing my songs.
01:24:40I don't sing my songs.
01:24:41I don't sing my songs.
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01:24:43I don't sing my songs.
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01:24:48I don't sing my songs.
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01:24:53I don't sing my songs.
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01:24:58I don't sing my songs.
01:24:59I don't sing my songs.
01:25:00I don't sing my songs.
01:25:01I don't sing my songs.
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01:25:09I don't sing my songs.
01:25:10I don't sing my songs.
01:25:11I don't sing my songs.
01:25:12I don't sing my songs.
01:25:13I don't sing my songs.
01:25:14I don't sing my songs.
01:25:15I don't sing my songs.
01:25:16I don't sing my songs.
01:25:17I don't sing my songs.
01:25:18I don't sing my songs.
01:25:19I don't sing my songs.
01:25:20I don't sing my songs.
01:25:21I don't sing my songs.
01:25:22I don't sing my songs.
01:25:23I don't sing my songs.
01:25:24I don't sing my songs.
01:25:25I don't sing my songs.
01:25:26I don't sing my songs.
01:25:27I don't sing my songs.
01:25:28I don't sing my songs.
01:25:29I don't sing my songs.
01:25:30I don't sing my songs.
01:25:31I don't sing my songs.
01:25:32I don't sing my songs.
01:25:33I don't sing my songs.
01:25:34I don't sing my songs.
01:25:35I don't sing my songs.
01:25:36I don't sing my songs.
01:25:37I don't sing my songs.
01:25:38I don't sing my songs.
01:25:39I don't sing my songs.
01:25:40I don't sing my songs.
01:25:41I don't sing my songs.
01:25:42I don't sing my songs.
01:25:43I don't sing my songs.
01:25:44I don't sing my songs.
01:25:45I don't sing my songs.
01:25:46I don't sing my songs.