Biology 5090 · O Level · Coordination and response in plants

Coordination and response in plants — practice question

The diagram illustrates some seedlings that have been grown in light. Which statement describes how auxin is distributed in the seedlings?

  • AAuxin is equally distributed in experiments 1 and 2.
  • BAuxin is equally distributed in experiment 1 only.
  • CAuxin is equally distributed in experiment 2 only.
  • DAuxin is not distributed equally in experiments 1 and 2.

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