IB Biology HL B1.2.3 Dietary Amino Acids Question Bank
Practise IB Biology HL B1.2.3 by evaluating essential amino-acid supply, conditional requirements and dietary evidence.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Evaluate essential and conditionally essential amino acids using dietary and synthesis evidence.
- Interpret amino-acid composition data to judge food quality and protein requirements.
B1.2.3—Dietary amino acids question 1
[Maximum number: 2]
Some of the twenty amino acids that are linked together to make polypeptides in human cells are essential in the diet and others are not. Distinguish between essential and non-essential amino acids.
a. essential amino acids cannot be synthesized (by human cells)
OR
essential amino acids are required to be obtained by diet / OWTTE;
b. non-essential amino acids can be made (from other amino acids);
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