A-LevelBiologyCell membranes and transport9700/12 · Oct/Nov 2022 · Q271 Mark
Sodium chloride is added to a culture solution containing freshwater single-celled plant cells. What happens to the water potential of the culture solution when the sodium chloride is added and what may happen to the plant cells after 5 minutes?
Awater potential of the culture solution when sodium chloride added: becomes less negative, single-celled plant cells after 5 minutes: become plasmolysed
Bwater potential of the culture solution when sodium chloride added: becomes less negative, single-celled plant cells after 5 minutes: become turgid
Cwater potential of the culture solution when sodium chloride added: becomes more negative, single-celled plant cells after 5 minutes: become plasmolysed
Dwater potential of the culture solution when sodium chloride added: becomes more negative, single-celled plant cells after 5 minutes: become turgid
✓ Correct answer
C: water potential of the culture solution when sodium chloride added: becomes more negative, single-celled plant cells after 5 minutes: become plasmolysed
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