Key Concept: Cell organelles have specific roles, and plant cells have extra structures for support and photosynthesis.
Section A: Labeling
1. Label the plant cell with: nucleus, cytoplasm, cell membrane, cell wall, chloroplast, vacuole, mitochondrion, ribosomes. [8]
[Plant cell diagram]
Section B: Functions
2. State the function of each organelle: nucleus, mitochondria, chloroplasts, ribosomes. [4]
3. Give two differences between plant and animal cells. [2]
4. State the function of the cell membrane and the cell wall. [2]
Total marks: 16
Mark Scheme
1. All eight labels correct [8]
2. Nucleus controls cell activities; mitochondria release energy by respiration; chloroplasts carry out photosynthesis; ribosomes make proteins [4]
3. Any two: plant cells have cell wall, chloroplasts, large permanent vacuole; animal cells do not [2]
4. Cell membrane controls movement of substances; cell wall supports and strengthens cell [2]