Plant Hormones

Question 1

Name three substances in the leaves of the plants that chemically protects it

Answer 1

Toxins
Digestive enzymes
Bitter tasting chemicals

Question 2

Two types of plant protection

Answer 2

Chemical: substances made in leaves and stems making eating them difficult
Physical- often spines and thorns that make it difficult to eat them

Question 3

Abscisic acid:

Answer 3

Helps plants to survive adverse conditions

Question 4

What hormone promotes dormancy in seeds and buds?

Answer 4

Abscisic acid

Question 5

What hormone causes the stomata to close?

Answer 5

Abscisic acid

Question 6

What hormone is a growth inhibitor?

Answer 6

Abscisic acid

Question 7

What hormone causes elongation in the main stem?

Answer 7

Gibberellins

Question 8

What hormone stimulates seed germination?

Answer 8

Gibberellins

Question 9

Do gibberellins affect apical dominance?

Answer 9

No

Question 10

Gibberellins

Answer 10

Cause elongation in the main stem
Causes the space between the internodes to lengthen
Stimulates seed germination
Encouraged sees to break out of their dormancy