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3.1 Communicable diseases

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Question 14
F

The leaves of a rose plant infected with rose black spot turn yellow. Why does this reduce the growth of the plant?

[1]
A

They contain less chlorophyll, so the leaf carries out less respiration

B

They contain more chlorophyll, so the leaf carries out less respiration

C

They contain less chlorophyll, so the leaf carries out less photosynthesis

D

They contain more chlorophyll, so the leaf carries out less photosynthesis

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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