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 molecules can function as enzymes?

Triglycerides

Polysaccharides

Phospholipids

Proteins

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Verified step by step guidance

Step 1: Understand the definition of enzymes. Enzymes are biological catalysts that speed up chemical reactions in living organisms. They are typically composed of proteins, although some RNA molecules (ribozymes) can also act as enzymes.

Step 2: Analyze the molecular composition of triglycerides. Triglycerides are lipids composed of glycerol and three fatty acid chains. They primarily function as energy storage molecules and do not have catalytic activity.

Step 3: Examine polysaccharides. Polysaccharides are carbohydrates made up of long chains of monosaccharides. Their primary roles include energy storage (e.g., glycogen) and structural support (e.g., cellulose). They do not function as enzymes.

Step 4: Investigate phospholipids. Phospholipids are lipids consisting of a glycerol backbone, two fatty acid chains, and a phosphate group. They are key components of cell membranes but do not act as enzymes.

Step 5: Conclude that proteins are the correct answer. Proteins are composed of amino acids and can fold into complex three-dimensional structures, enabling them to act as enzymes by providing specific active sites for catalysis.