A Levels Biology (9700)•9700/12/M/J/24

Explanation
Distinguishing organelles in plant vs. animal cells
Steps:
- Identify plant-specific structures: plasmodesmata for cell communication, tonoplast for vacuole membrane.
- Identify animal-specific structures: centrioles for mitosis spindle formation.
- Confirm shared structures: Golgi body present in both for protein modification.
- Evaluate options against these presences for plant (left) and animal (right) cells.
Why C is correct:
- Centrioles are microtubule-organizing centers absent in plant cells (which use alternative mechanisms) but present in animal cells to form mitotic spindles.
Why the others are wrong:
- A: Plasmodesmata link adjacent plant cells but are absent in animal cells, which use gap junctions.
- B: Golgi bodies process and package proteins in both plant and animal cells.
- D: Tonoplast encloses the large central vacuole in plant cells but is absent in animal cells.
Final answer: C
Topic: Cells as the basic units of living organisms
Practice more A Levels Biology (9700) questions on mMCQ.me