A farmer in Guyana noticed that cassava leaves wilted during the midday heat but recovered in the evening. The wilting was caused by cells losing water and the cell membrane pulling away from the cell wall. What is this process called?

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Question

A farmer in Guyana noticed that cassava leaves wilted during the midday heat but recovered in the evening. The wilting was caused by cells losing water and the cell membrane pulling away from the cell wall. What is this process called?

Accepted Answer

Plasmolysis — Award 1 mark for identifying plasmolysis as the shrinking of the cytoplasm away from the cell wall due to water loss by osmosis. A is incorrect — turgidity describes a cell that is full of water. C is incorrect — cytolysis is the bursting of animal cells due to excess water uptake. D is incorrect — haemolysis specifically refers to the bursting of red blood cells.

Answer

Haemolysis

Answer

Plasmolysis

Answer

Cytolysis

Answer

Turgidity

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