Question Constellation Sign up for free

AQA · GCSE · Biology · Higher

Auxin uses in plants

Q04.7 2 marks

Farmers can use plant hormones to control the growth of plants.

Give two uses of auxin.

Write your answer first. You can study the marking guidance whenever you need it.

Answer this question
Study the marking See what earns credit and compare it with a full-mark answer.

Marking points

  1. 1 Gives use as a weed killer.
  2. 2 Gives use in rooting powders/from cuttings.
  3. 3 Gives use in tissue culture.
  4. 4 Gives use in inhibiting lateral buds.

Full-mark answer

1. Auxin is used in selective weed killers. 2. It is used in rooting powders to help cuttings form roots.

Why this answer loses marks

Auxin makes plants grow.

This is too vague; give two specific agricultural uses involving weed control, rooting or tissue culture.

Answer this question