Plant hormones

Question 1

what are the 3 ways plants respond to stimuli?

Answer 1

• sunlight ➡️Photo
• water ➡️Hydro
• gravity ➡️Geo

Question 2

How do plants grow?

Answer 2

By responding to a stimuli.

Question 3

What is Tropism?

Answer 3

A response by stimuli to grow.

Question 4

Name the key parts of a plant

Answer 4

• Shoot
• leaf
• stem
• roots
• growing tips

Question 5

What does the shoot of a plant move towards & away from?

Answer 5

Towards➡️sunlight

Away➡️water & gravity

Question 6

Does Hydrotropic respond negatively or positively to the shoot and root?

Answer 6

Shoot ➡️ negatively (shoot does not need water)

Root ➡️positively (roots need water)

Question 7

what is Auxin?

Answer 7

Family of hormones that are found in plants.

Question 8

What does auxin do in roots?

Answer 8

Slows cell growth down.

Question 9

What happens to the auxin in the layer of cells under the tip of a plant?

Answer 9

Detects and makes Auxin ➡️Auxin hates sun so moves away from it ➡️moves down the shoot ➡️causes cells to grow quickly

Question 10

If the sun(stimuli) is next to the side of a plant, what happens?

Answer 10

Auxin moves down to the side away from sun into shadow.
⬇️
Causes the tip to bend towards the sun and grows faster.

Question 11

What happens to auxin in a plant is on it’s side?

Answer 11

The auxin is heavy and moves down the root and causes it to bend by gravity.