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

How many amino acids are considered essential because they must be obtained from the diet and cannot be synthesized by the human body?

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Verified step by step guidance

Understand the concept of essential amino acids: Essential amino acids are those that the human body cannot synthesize on its own and must be obtained through dietary sources.

Recall the total number of amino acids used in protein synthesis: There are 20 standard amino acids that are incorporated into proteins.

Identify the subset of amino acids that are classified as essential: Out of the 20 amino acids, a specific number are considered essential because they cannot be synthesized by the human body.

List the essential amino acids: These include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. In some cases, arginine is also considered essential, particularly for children.

Match the correct number of essential amino acids to the options provided: Compare the number of essential amino acids to the choices given in the problem (10, 20, 5, 2) to determine the correct answer.