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

Proteins

Biochemistry

1. Introduction to Biochemistry

Proteins

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Multiple Choice

Which of the following correctly lists functions of proteins in biological systems?

Cellulose formation, oxygen production, and water transport

Energy storage, genetic information storage, and insulation

Hormone synthesis, DNA replication, and lipid digestion

Enzyme catalysis, structural support, transport, and immune defense

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Verified step by step guidance

Step 1: Begin by understanding the role of proteins in biological systems. Proteins are macromolecules composed of amino acids and are essential for various cellular functions.

Step 2: Analyze the options provided in the problem. Evaluate each function listed to determine if it aligns with known protein functions. For example, cellulose formation is a carbohydrate-related process, not a protein function.

Step 3: Recall the major functions of proteins, which include enzyme catalysis (speeding up biochemical reactions), structural support (e.g., collagen in connective tissues), transport (e.g., hemoglobin transporting oxygen), and immune defense (e.g., antibodies protecting against pathogens).

Step 4: Compare the correct answer provided ('Enzyme catalysis, structural support, transport, and immune defense') with the other options. Eliminate incorrect options based on your understanding of protein functions.

Step 5: Conclude that the correct answer aligns with the known functions of proteins in biological systems, as proteins are involved in catalysis, structural roles, transport, and immune defense, but not in cellulose formation, genetic information storage, or insulation.