2.15 Diffusion, osmosis and active transport
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Which process moves substances against a concentration gradient?
(1)Total for this question: 1 mark
2(d) MOVEMENT OF SUBSTANCES INTO AND OUT OF CELLS · EXAM QUESTIONS
2.15 Diffusion, osmosis and active transport
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2.15 Diffusion, osmosis and active transport
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Which statement describes osmosis?
(1)Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
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Which process requires energy from respiration?
(1)Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
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Which substance enters a red blood cell in the lungs by diffusion?
(1)Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
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Which is an example of active transport?
(1)Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
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State what is meant by diffusion.
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Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
Exam question
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State what is meant by osmosis.
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Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
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State what is meant by active transport.
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Total for this question: 1 mark
2.15 Diffusion, osmosis and active transport
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Explain why active transport needs oxygen in root cells.
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Total for this question: 2 marks
2.15 Diffusion, osmosis and active transport
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Plants growing in waterlogged soil take up fewer mineral ions. Explain why.
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Total for this question: 3 marks
2.15 Diffusion, osmosis and active transport
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Compare diffusion and active transport.
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Total for this question: 3 marks
2.15 Diffusion, osmosis and active transport
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Compare osmosis and diffusion.
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Total for this question: 2 marks
2.15 Diffusion, osmosis and active transport
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Explain why water enters a root hair cell from the soil.
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Total for this question: 2 marks
2.15 Diffusion, osmosis and active transport
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Explain what happens to a red blood cell placed in pure water.
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Total for this question: 3 marks
2.15 Diffusion, osmosis and active transport
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Explain what happens to a plant cell placed in a concentrated sugar solution.
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Total for this question: 3 marks