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

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

The subunits (monomers) in cellulose are linked together by which type of glycosidic bond?

α(1→4) glycosidic bonds

β(1→6) glycosidic bonds

α(1→6) glycosidic bonds

β(1→4) glycosidic bonds

Previous problemNext problem

Verified step by step guidance

Understand the structure of cellulose: Cellulose is a polysaccharide composed of glucose monomers. These monomers are linked together in a specific way to form the polymer.

Recall the type of glycosidic bond in cellulose: In cellulose, glucose monomers are connected by β(1→4) glycosidic bonds. This means the bond forms between the β-anomeric carbon (carbon 1) of one glucose molecule and the hydroxyl group on carbon 4 of the next glucose molecule.

Differentiate between α and β glycosidic bonds: α-glycosidic bonds occur when the hydroxyl group on the anomeric carbon is below the plane of the glucose ring, while β-glycosidic bonds occur when the hydroxyl group is above the plane of the ring. Cellulose specifically uses β-glycosidic bonds.

Understand the significance of β(1→4) bonds: These bonds result in a linear, rigid structure that allows cellulose to form strong fibers, which are essential for its role in plant cell walls.

Review the incorrect options: α(1→4) glycosidic bonds are found in starch, β(1→6) glycosidic bonds are less common and typically found in branching polysaccharides, and α(1→6) glycosidic bonds are found in glycogen. None of these apply to cellulose.