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3.3 Organisms exchange substances with their environment

Quick questions on Gas exchange in insects, fish and plants - AQA A-Level Biology 3.3

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Describe the pathway of oxygen from outside an insect to a respiring muscle cell. [3 marks]
What is q2?
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Explain two ways the leaf of a xerophyte is adapted to reduce water loss while still allowing gas exchange. [4 marks]
What is q3?
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Using Fick's law, explain two features of a fish gill that increase the rate of oxygen uptake. [4 marks]

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