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Question
Look at the diagram of a cell in Fig. 2.20. Identify the parts labelled from (a) to (g) and correctly match them with their functions given below: (i) Controlling all the activities of a cell. (ii) Site of cellular respiration. (iii) Storage organelle that also provides rigidity to the cell. (iv) Separates the cell contents from surroundings. (v) Provides structural rigidity to the cell. (vi) Packs and stores materials received from ER. (vii) Helps in manufacturing food.
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Answer
Each part is matched to its function below.
Explanation
| Function | Cell part |
|---|---|
| (i) Controls all activities of the cell | Nucleus |
| (ii) Site of cellular respiration | Mitochondria |
| (iii) Storage organelle that gives rigidity | Vacuole |
| (iv) Separates cell contents from surroundings | Cell membrane |
| (v) Provides structural rigidity | Cell wall |
| (vi) Packs and stores materials from ER | Golgi apparatus |
| (vii) Helps in manufacturing food | Chloroplast |
Each organelle does one clear job in the cell.
Reading a Cell Diagram
Nucleus
Control centre holding the DNA.
↓
Mitochondria
Release energy as ATP.
↓
Cell Membrane
Selectively permeable boundary.
