Hormones and Tropic Response

Question 1

What is phototropism?

Answer 1

Plant turning towards or away from light

Question 2

What is gravitropism?

Answer 2

Plant growing with or against gravity

Question 3

Positive gravitropism?

Answer 3

Roots grow toward gravity

Question 4

Negative gravitropism?

Answer 4

Shoots grow away from gravity

Question 5

What is thigmotropism?

Answer 5

Opens or closes based on touch (animal or person touching it)

Question 6

What happens to plants when they get red light?

Answer 6

Elongation and growth of tissue, germination, circadian rhythm

Question 7

What happens to plants when they get blue light?

Answer 7

Polar cell growth, chloroplast movement

Question 8

What happens to plants when they get both red and blue light?

Answer 8

Seasonal responses and flowering, stoma and gas exchange

Question 9

What happens with an open stoma?

Answer 9

Phot 1 and phot 2 absorb the blue light, PHYTB absorbs the red light, K pumped in

Question 10

What happens with stoma closed?

Answer 10

no light, no turgor pressure, and ABA signals from roots

Question 11

What happens to a CAM stoma

Answer 11

Open at night, not controlled by light receptors