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

3. Amino Acids

Essential Amino Acids

Biochemistry

3. Amino Acids

Essential Amino Acids

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Multiple Choice

Which of the following statements is true of essential amino acids?

They are only required during periods of rapid growth, such as childhood.

They are synthesized in the liver from glucose via gluconeogenesis.

They can be converted into essential fatty acids in the body.

They cannot be synthesized by the human body and must be obtained from the diet.

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Verified step by step guidance

Understand the concept of essential amino acids: Essential amino acids are those that cannot be synthesized by the human body and must be obtained through dietary sources.

Analyze the first statement: 'They are only required during periods of rapid growth, such as childhood.' This is incorrect because essential amino acids are required throughout life, not just during growth periods.

Evaluate the second statement: 'They are synthesized in the liver from glucose via gluconeogenesis.' This is incorrect because gluconeogenesis is a pathway for glucose production, not amino acid synthesis. Essential amino acids cannot be synthesized by the body.

Assess the third statement: 'They can be converted into essential fatty acids in the body.' This is incorrect because essential amino acids and essential fatty acids are distinct categories of nutrients, and one cannot be converted into the other.

Confirm the correct statement: 'They cannot be synthesized by the human body and must be obtained from the diet.' This is true and aligns with the definition of essential amino acids.