IB Biology HL 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 bones and muscles of the human elbow joint.

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

State one reason that striated muscle cells are considered atypical.

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