A gardener is looking at the plants in his greenhouse - AQA - GCSE Biology - Question 7 - 2018 - Paper 1
Question 7
A gardener is looking at the plants in his greenhouse.
Some of the plants have a disease.
Give two ways the gardener could identify the pathogen infecting the plan... show full transcript
Worked Solution & Example Answer:A gardener is looking at the plants in his greenhouse - AQA - GCSE Biology - Question 7 - 2018 - Paper 1
Step 1
Give two ways the gardener could identify the pathogen infecting the plants.
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Answer
Compare the plants to pictures in a gardening manual or website.
Send samples to a laboratory for testing.
Step 2
Describe the appearance of plants with:
- nitrate deficiency.
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Answer
Nitrate deficiency can cause stunted growth in the plants.
Step 3
Describe the appearance of plants with:
- magnesium deficiency.
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Answer
Magnesium deficiency can result in yellowing of leaves, leading to chlorosis.
Step 4
Explain why he chose Fertiliser S.
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Answer
Fertiliser S has the highest nitrogen content, which is essential for good growth. Additionally, it has a high potassium content, which supports stronger roots. It is also cheaper than Fertiliser T. However, it contains less phosphate than Fertiliser T, which may affect flowering and fruit development.
