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IB Biology HL 2.2.13 Cell Differentiation and Specialisation

Practise IB Biology HL 2.2.13 by explaining how selective gene expression creates different proteomes and specialised cell types.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how selective gene expression produces different proteomes and specialised cell types.
  • Use blood-cell examples to link gene expression with distinct structures and functions.
  • Distinguish a shared genome from the different proteomes produced during cell differentiation.

A2.2.13 (HL)—Cell differentiation question 1

[Maximum number: 1]

The micrograph shows two types of blood cell.

Figure for Question A2.2.13 (HL)—Cell differentiation question 1 — IB Biology HL

What determines the differences between the two types of cell?

A

Different number of mitotic cycles

B

Different expression of some genes

C

Reaction to oxygen of red blood cells

D

Reaction to antigens of white blood cells

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