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

What is Biochemistry?

Biochemistry

1. Introduction to Biochemistry

What is Biochemistry?

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Multiple Choice

Which of the following statements accurately describes vitamins?

Vitamins are organic molecules required in small amounts for essential metabolic reactions in the body.

Vitamins are inorganic ions that serve as structural components of bones and teeth.

Vitamins are synthesized in large quantities by the human body.

Vitamins are the primary source of energy for cellular respiration.

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Verified step by step guidance

Understand the definition of vitamins: Vitamins are organic molecules required in small amounts for essential metabolic reactions in the body. They are not inorganic ions, nor are they synthesized in large quantities by the human body.

Clarify the distinction between organic and inorganic molecules: Organic molecules contain carbon and are typically derived from living organisms, whereas inorganic ions (e.g., calcium, phosphate) are minerals that serve structural roles, such as in bones and teeth.

Explain why vitamins are not synthesized in large quantities by the human body: Most vitamins must be obtained through diet because the body either cannot synthesize them or produces them in insufficient amounts.

Discuss why vitamins are not the primary source of energy for cellular respiration: Cellular respiration primarily relies on macronutrients like carbohydrates, fats, and proteins for energy, not vitamins. Vitamins act as cofactors or coenzymes in metabolic pathways.

Conclude by identifying the correct statement: Vitamins are organic molecules required in small amounts for essential metabolic reactions in the body. This aligns with their role in supporting enzymatic functions and maintaining health.