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 about essential amino acids is true?

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

They can be converted into non-essential amino acids by transamination.

They are found exclusively in plant-based foods.

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

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Verified step by step guidance

Step 1: Begin by understanding 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.

Step 2: Evaluate the first statement: 'They cannot be synthesized by the human body and must be obtained from the diet.' This aligns with the definition of essential amino acids, so it is likely true.

Step 3: Analyze the second statement: 'They can be converted into non-essential amino acids by transamination.' While transamination is a process that converts amino acids, essential amino acids themselves cannot be synthesized by the body, so this statement is incorrect.

Step 4: Examine the third statement: 'They are found exclusively in plant-based foods.' Essential amino acids are found in both plant-based and animal-based foods, so this statement is false.

Step 5: Review the fourth statement: 'They are only required during periods of rapid growth, such as childhood.' Essential amino acids are required throughout life, not just during periods of rapid growth, making this statement incorrect.