IB Biology SL A2.2.9 Atypical Cell Structure Questions

Explore how atypical cells show limits of simple cell theory. The examples include multinucleate fungal hyphae and striated muscle fibres, plus mature red blood cells and phloem sieve tubes that lack nuclei.

Exam points

Describe multinucleate fungal hyphae and striated muscle fibres as atypical cells with multiple nuclei.
State that mature red blood cells and phloem sieve tubes lack nuclei.
Explain how these examples show limits to simple cell theory.

[Maximum number: 1]

The diagram shows the structure of part of a fungus.

Figure for Question IB Biology SL A2.2.9 Atypical Cell Structure Questions question 1 — IB Biology SL

Identify one feature of the fungus that is atypical of cell structure.

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IB Biology SL A2.2.9 Atypical Cell Structure Questions question 1