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3.1 Communicable diseases

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Question 12
F

The figure shows a leaf taken from a rose plant infected with rose black spot.

Figure: A rose leaf taken from a plant infected with rose black spot

image

a.

Describe two symptoms of rose black spot shown in the figure.

[2]
b.

Infected leaves fall off the rose plant early. Explain why this reduces the growth of the rose plant.

[2]
Markscheme

3.1 Communicable diseases Questions

  1. GCSE
  2. /Biology
  3. /3.1 Communicable diseases

176 exam-style questions on AQA GCSE Biology 3.1 Communicable diseases, covering 3.1.1 Communicable (infectious) diseases, 3.1.2 Viral diseases, 3.1.3 Bacterial diseases, 3.1.4 Fungal diseases, 3.1.5 Protist diseases, 3.1.6 Human defence systems, 3.1.7 Vaccination, 3.1.8 Antibiotics and painkillers, and 3.1.9 Discovery and development of drugs. Each one has a worked solution and a mark scheme showing where the marks go.

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