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 best describes non-essential amino acids?

Amino acids that are not incorporated into proteins

Amino acids that can be synthesized by the human body and do not need to be obtained from the diet

Amino acids that must be obtained from the diet because the body cannot synthesize them

Amino acids that are only found in plant-based proteins

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Verified step by step guidance

Step 1: Begin by understanding the term 'non-essential amino acids.' These are amino acids that the human body can synthesize on its own, meaning they do not need to be obtained through dietary sources.

Step 2: Compare this definition with the options provided. Eliminate any options that contradict the ability of the body to synthesize these amino acids.

Step 3: Option 1 states 'Amino acids that are not incorporated into proteins.' This is incorrect because non-essential amino acids are indeed incorporated into proteins; their classification is based on synthesis capability, not protein incorporation.

Step 4: Option 3 states 'Amino acids that must be obtained from the diet because the body cannot synthesize them.' This describes essential amino acids, not non-essential amino acids, so it is incorrect.

Step 5: Option 4 states 'Amino acids that are only found in plant-based proteins.' This is incorrect because non-essential amino acids are found in proteins from various sources, not exclusively plant-based. The correct answer is Option 2: 'Amino acids that can be synthesized by the human body and do not need to be obtained from the diet.'