Water and carbon dioxide are exchanged between leaves and the atmosphere through pores called stomata - AQA - GCSE Biology - Question 5 - 2022 - Paper 1
Question 5
Water and carbon dioxide are exchanged between leaves and the atmosphere through pores called stomata.
05.1 Name the cells that control the opening and closing of ... show full transcript
Worked Solution & Example Answer:Water and carbon dioxide are exchanged between leaves and the atmosphere through pores called stomata - AQA - GCSE Biology - Question 5 - 2022 - Paper 1
Step 1
05.1 Name the cells that control the opening and closing of the stomata.
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Answer
The cells that control the opening and closing of the stomata are called guard cells.
Step 2
05.2 Describe two differences between the transpiration stream and translocation.
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Answer
The transpiration stream involves xylem and transports water and minerals, while translocation involves phloem and transports dissolved sugars.
The transpiration stream moves substances upwards, whereas translocation moves substances upwards and downwards.
Step 3
05.3 Which environmental conditions would cause the rate of transpiration to be greatest in a plant?
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