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5.2 Plant and body defences

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Question 28
H

A farmer observes similar lesions on plants in several fields. A laboratory can test only a small number of leaf samples.

Which sampling method would provide the best comparison for investigating a link between a pathogen and the lesions?

[1]
A

sample affected plants only from the field with the most lesions

B

sample unaffected plants only from the field with the fewest lesions

C

sample affected and unaffected plants from several of the fields

D

sample several leaves from one affected plant in a single field

Markscheme

5.2 Plant and body defences Questions

  1. GCSE
  2. /Biology
  3. /5.2 Plant and body defences

45 exam-style questions on Edexcel GCSE Biology 5.2 Plant and body defences, covering 5.2.1 Physical plant defences, 5.2.2 Chemical plant defences, 5.2.3 Detecting plant diseases, and 5.2.4 Human physical and chemical defences. Each one has a worked solution and a mark scheme showing where the marks go.

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