K325 / 2027

Cell structure and organisation

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Which pairing correctly describes a plant cell?

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Which observation is the strongest evidence that a cell is a plant cell?

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Which conclusion is justified when a nucleus becomes visible after staining?

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A 30 mm drawing represents a cell 60 micrometres long. What is its magnification?

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An electron micrograph shows an oval organelle with a folded inner membrane. What is its likely function?

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Why does a mature mammalian red blood cell lack a nucleus?

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Question 1 of 6

Identify an unfamiliar cell

Cell A has a cellulose wall, a large sap-filled vacuole and a nucleus, but no chloroplasts. Cell B has a nucleus and membrane but no wall. Identify the likely cell groups, give two structural comparisons and explain why A can lack chloroplasts.

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