A Levels Biology (9700)•9700/13/M/J/25

Explanation
Organelle absence in red blood cells and plant cells
Steps:
- Identify key organelles: Mature red blood cells lack nucleus, mitochondria, ribosomes, and centrioles to optimize oxygen transport.
- Note plant cell features: Contain mitochondria, ribosomes, and large vacuoles but lack centrioles, using alternative microtubule organization.
- Compare each option: Check for shared accurate traits between the two cell types.
- Select the option: Choose the statement true for both without contradictions.
Why C is correct:
- Centrioles organize microtubules during division; mature red blood cells extrude them during maturation, and plant cells lack them entirely, relying on other structures per cell biology definitions.
Why the others are wrong:
- A: Plant cells contain mitochondria for ATP production via cellular respiration.
- B: Mature red blood cells lack ribosomes completely; plant cells have 80S cytoplasmic ribosomes but also 70S in chloroplasts.
- D: Red blood cells have no vacuoles; only plant cells possess large permanent vacuoles for storage and turgor.
Final answer: C
Topic: Cells as the basic units of living organisms
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