IB Biology SL 2.1.10 Polypeptide length and synthesis Question Bank
Practise IB Biology SL 2.1.10 by explaining why translated polypeptides differ in length.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Relate mRNA coding information to polypeptide length.
- Explain how stages of protein synthesis produce a completed polypeptide.
D1.2.10—Elongation of polypeptide question 1
[Maximum number: 2]
Six polypeptides are shown in the diagram. Explain the different lengths of these polypeptides.
a. ribosome moves along the mRNA molecule/structure X moves along Y ;
b. amino acids added (to the polypeptide) one by one
OR
some polypeptides are still in formation / OWTTE;
c. more amino acids added to the polypeptide by the ribosome on the right;
2
Marking guidance:
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