Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

1. Introduction to Biochemistry

Carbohydrates

Biochemistry

1. Introduction to Biochemistry

Carbohydrates

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Multiple Choice

Which type of starch has a highly branched-chain structure?

Cellulose

Amylose

Amylopectin

Glycogen

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Understand the structural differences between the given polysaccharides: Cellulose, Amylose, Amylopectin, and Glycogen.

Cellulose is a linear polymer of β-D-glucose units linked by β(1→4) glycosidic bonds, primarily found in plant cell walls. It does not have a branched structure.

Amylose is a linear polymer of α-D-glucose units linked by α(1→4) glycosidic bonds. It is a component of starch but lacks branching.

Amylopectin is a branched polymer of α-D-glucose units. It contains α(1→4) glycosidic bonds in the linear chains and α(1→6) glycosidic bonds at the branch points, making it highly branched. This is the correct answer.

Glycogen is also a branched polymer of α-D-glucose, similar to Amylopectin, but it is even more highly branched. It is the storage form of glucose in animals, not starch.