1.2 (P3) Control In Plants Flashcards Preview

AQA GCSE - Biology > 1.2 (P3) Control In Plants > Flashcards

Flashcards in 1.2 (P3) Control In Plants Deck (6)
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1

What word is used to describe plants growing in response to a stimulus?

Topism

2

Name the tropism in response to each stimulus

Light
Gravity
Water

Phototropism
Geotropism
Hydrotropism

3

Name a plant hormone

Auxins

4

Describe how plants grow in response to light

When light hits the plant the stimulus is detected by the receptor and auxins are produced

Auxins move downwards but spread out

The light forces them to move to the shady side

As a result of a high concentration of auxins causes the steam to elongate toward the light

5

Where does the detection of light take place?

The tip of the steam

6

What can plant growth hormones be used for?

Weed killers in agriculture