week 10

Question 1

Auxins

Answer 1

are synthesized mainly in the shoot apical meristem and young stems and leaves. As well as cruical to plant growth

Question 2

-less auxin, lateral growth. More auxin, ___growth.

Answer 2

aprical

Question 3

different cells have different senstitivity in roots, they are more sensitive to low levels of auxin info.

Answer 3

for example -Broccoli, we see the change in ancestral variety do the domestic variety in suppression of flower development.

Question 4

bolting

Answer 4

-Another stark demonstration of the effect gibberellins can have on internode growth is (growth of floral stalk)

Question 5

Cytokinins

Answer 5

play a major role in stimulating cell division (hence the name, which refers to cytokinesis)

Question 6

Senescence

Answer 6

is a controlled process of deterioration that leads to the death of plant cells.

Question 7

-abscission,

Answer 7

the dropping of flowers, fruits, and leaves in response to environmental signals.

Question 8

dehiscene(shed ripen grains) whilst indehiscence

Answer 8

hold onto ripened grains

Question 8

ABA allows them to get plants into dormancy whilst gibberellin gets them ___.

Answer 8

out

Question 9

Hypersensitive response

Answer 9

isolates an infection site by surrounding it with dead cells

Question 10

phototrophisms

Answer 10

are responses to light

Question 11

Thigmotropism and thrigmomorphogensis

Answer 11

are responses to physical contact

Question 12

nastic movements are

Answer 12

nondirectional

Question 13

Statoliths

Answer 13

-a statolith helps a plant or a person to tell us which way is up.

Question 14

Many plants counter bacteria and fungi, and even viruses, by making____.

Answer 14

phytoalexins,