IB Biology A2.2.9 Atypical cell structure
IB Biology A2.2.9 Atypical cell structure
Practise recognising atypical cells from nuclei, compartments and organelles in red blood cells, sieve tubes, muscle fibres and fungal hyphae.
How this is tested
- explain why red blood cells or sieve tube elements are atypical because they lack nuclei
- compare striated muscle and aseptate fungal hyphae by their multiple nuclei
- state how atypical cells challenge simple statements of cell theory