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

6. Enzymes and Enzyme Kinetics

Enzymes

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzymes

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Multiple Choice

Which of the following components obtained from food is essential for the proper function of many enzymes as cofactors or coenzymes?

Vitamins

Cellulose

Cholesterol

Triglycerides

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Verified step by step guidance

Understand the role of cofactors and coenzymes in enzymatic reactions. Cofactors are non-protein chemical compounds or metallic ions required for enzyme activity, while coenzymes are organic molecules that assist enzymes in catalyzing reactions.

Recall that vitamins are organic compounds obtained from food that often serve as precursors to coenzymes. For example, vitamin B derivatives like NAD+ and FAD are crucial coenzymes in metabolic pathways.

Analyze the other options: Cellulose is a carbohydrate that provides structural support in plants and is not involved in enzyme function. Cholesterol is a lipid important for membrane structure and hormone synthesis but does not act as a coenzyme. Triglycerides are fats used for energy storage and are not involved in enzymatic cofactor roles.

Conclude that vitamins are the correct answer because they are essential for the proper function of many enzymes as cofactors or coenzymes.

To solidify understanding, consider examples of vitamins acting as coenzymes, such as vitamin C in collagen synthesis or vitamin K in blood clotting enzyme activation.