Title: Class 11 Biomolecule| Polysaccharides| Carbohydrates|

Title: Class 11 Biomolecule| Polysaccharides| Carbohydrates|
 Chapter: Biomolecules
 Lecture No.06: Carbohydrates: Monosaccharides, Disaccharide and polysaccharide
"Welcome to our latest video! In this lecture, we'll cover fourth biomolecules polysaccharide. It helps to study all the biological functions of carbohydrates"
Summary
The video provides an in-depth explanation of polysaccharides, a type of carbohydrate, and their structures. It starts by defining carbohydrates and their components, then goes on to discuss the different types of polysaccharides, including starch, glycogen, and cellulose. The video also covers the concepts of reducing and non-reducing sugars, and how these are identified using chemical tests. The key focus is on understanding the structural differences between various polysaccharides and how they relate to their biological functions.
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 Detail Information:
In this lecture, we will study
1. What is a Carbohydrates?
2. What are monosaccharides and its examples?
3. What are disaccharides and its examples?
4. What are polysaccharide? Homo-polysaccharide and its examples?
5. Structure of Starch?
6. What is reducing and non-reducing sugar
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 Timestamps:
Key Points
Introduction to Carbohydrates
[0:14] Welcome to the beautiful world of biology
[0:18] Reviewing macromolecules like protein structure
[0:24] Now we will look at the structure of polysaccharides
Understanding Polysaccharides
[0:37] Polysaccharides are long chains of sugar molecules
[0:51] Explaining the meaning of "poly" and "saccharide"
[1:02] Saccharide means sugar molecule
[1:15] Carbohydrates are made up of carbon, hydrogen, and oxygen
Monomers and Polymers
[1:27] Monomers are the basic units that make up carbohydrates
[1:38] Monomers are called monosaccharides
[1:47] Examples of monosaccharides: glucose, fructose, galactose
Homopolysaccharides and Heteropolysaccharides
[3:27] Polysaccharides can be divided into two groups: homopolysaccharides and heteropolysaccharides
[3:50] Homopolysaccharides are made up of the same type of monosaccharide
[4:01] Examples of homopolysaccharides: starch, glycogen, cellulose
Structure of Starch and Glycogen
[6:14] Starch is a homopolysaccharide made up of glucose monomers
[6:29] Glycogen is also a homopolysaccharide made up of glucose monomers
[6:32] Both starch and glycogen have a branched structure
Structure of Cellulose
[6:35] Cellulose is a homopolysaccharide made up of glucose monomers
[6:38] Cellulose is a structural component of plant cell walls
Chitin
[6:44] Chitin is a homopolysaccharide found in the cell walls of fungi
[6:48] Chitin is made up of modified glucose monomers
Reducing and Non-Reducing Sugars
[7:22] Reducing sugars can undergo chemical reactions, while non-reducing sugars cannot
[7:50] This is due to the presence or absence of a free aldehyde or ketone group
[8:05] Tests can be performed to identify reducing and non-reducing sugars
Glycosidic Bonds
[10:58] Polysaccharides are formed by glycosidic bonds between monosaccharides
[11:26] The type of glycosidic bond (α or β) determines the structure and properties of the polysaccharide
[11:49] Starch and glycogen have α-1,4 and α-1,6 glycosidic bonds
[12:10] Cellulose has β-1,4 glycosidic bonds
Credits:
1. Pratibha Namdev Chavan
2. Vrushali Jitendra Chavan
3. Bhavana B. Gosavi
#Biomolecules #Class11Biology #NCERT #ReducingSugar #JCB #Carbohydrates #Polysaccharides #Class11Biomolecules #monosaccharides #BiologyLecture #disaccharides #Homopolysaccharides #starch #Glycogen #BiologyForNEET

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[@dhananjayrathod-tt7me]

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[@aditikshirsagar520]

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[@SatishChavan-up7xn]

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[@JitendraChavan-24]

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[@aditikshirsagar520]

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[@JitendraChavan-24]

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