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2.3 Plant tissues, organs and systems

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Question 15
F

The walls of xylem vessels are strengthened with lignin. Which pair of roles does the lignin carry out?

[1]
A

It waterproofs the vessels and stops sugars leaking out of the phloem

B

It waterproofs the vessels and pushes water upwards through the plant

C

It supports the plant and stops the vessels collapsing as water is pulled up

D

It supports the plant and pushes water upwards through the vessels

Markscheme

2.3 Plant tissues, organs and systems Questions

  1. GCSE
  2. /Biology
  3. /2.3 Plant tissues, organs and systems

38 exam-style questions on AQA GCSE Biology 2.3 Plant tissues, organs and systems, covering 2.3.1 Plant tissues and 2.3.2 Plant organ system. Each one has a worked solution and a mark scheme showing where the marks go.

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