Some of the water is used for photosynthesis - AQA - GCSE Biology - Question 5 - 2010 - Paper 1
Question 5
Some of the water is used for photosynthesis.
Complete the word equation for photosynthesis.
Water and dissolved substances are transported through a plant.
Compl... show full transcript
Worked Solution & Example Answer:Some of the water is used for photosynthesis - AQA - GCSE Biology - Question 5 - 2010 - Paper 1
Step 1
Complete the word equation for photosynthesis.
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Answer
The complete word equation for photosynthesis is:
carbon dioxide+water→glucose+oxygen
Step 2
Complete the sentences.
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Answer
Water is lost from leaves through pores called stomata.
Dissolved sugars are transported in the phloem.
Step 3
Calculate how many times greater the rate of transpiration of species A is than the rate of transpiration of species B.
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Answer
To calculate how many times greater the rate of transpiration of species A is than that of species B, use the following equation:
Number of times greater=254310≈1.22
Thus, the answer to 2 significant figures is 1.2.
Step 4
Which factor could cause species A to have a higher rate of transpiration than species B?
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Answer
Each leaf of species A has more stomata.
Step 5
Which environmental change would cause an increase in the rate of transpiration?
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Answer
Increased temperature would cause an increase in the rate of transpiration.
Step 6
Which plant species in Table 3 is most likely to live in a dry desert?
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Answer
The plant species most likely to live in a dry desert is C.
Step 7
How will the sharp spines help the gorse plant survive?
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Answer
The sharp spines will help the gorse plant survive by preventing animals from eating the plant.
Step 8
Explain why animals avoid eating the hornet moth.
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Answer
Animals avoid eating the hornet moth because it looks like the hornet, making them think it is dangerous. Additionally, animals avoid the risk of being stung.
