IB Biology SL B1.2.3 Dietary Amino Acids Questions
Practise IB Biology SL B1.2.3 by distinguishing essential and non-essential amino acids and linking deficiency to protein nutrition.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Distinguish essential amino acids that cannot be synthesized by humans and must be obtained from dietary protein from non-essential amino acids made by the body.
- Use dietary composition or comparison data to identify limiting or conditionally essential amino acids and evaluate the adequacy of a protein source.
- Explain how deficiency of essential amino acids limits protein synthesis and causes impaired growth, tissue formation or protein-deficiency malnutrition.
IB Biology SL B1.2.3 Dietary Amino Acids Questions 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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