Plant Hormones

Question 1

promotes cell elongation in stems and coleoptiles but inhibits root growth

Answer 1

auxin

Question 2

promotes cell elongation in stems but inhibit lateral buds

Answer 2

auxin

Question 3

mediates the effects of light and gravity of growth/phototropism

Answer 3

auxin

Question 4

promotes the formation of lateral roots and adventitious roots

Answer 4

auxin

Question 5

regulate DNA replication

Answer 5

auxin

Question 6

delays onset of leaf abscission`

Answer 6

auxin

Question 7

regulate fruit development

Answer 7

auxin

Question 8

regulates expression of genes

Answer 8

auxin

Question 9

induces vascular differentiation

Answer 9

auxin

Question 10

regulates stem elongation in intact plants

Answer 10

GA

Question 11

enhances bolting and flowering in LDP or long day plants

Answer 11

GA

Question 12

stimulates alpha-amylase in germinating seeds or cereals

Answer 12

GA

Question 13

Mobilizes food and minerals in storage of cells

Answer 13

GA

Question 14

promotes growth of dormant buds and seed germination (photodormant)

Answer 14

GA

Question 15

stimulate fruit setting and growth of some fruits

Answer 15

GA

Question 16

promotes cell division and organogenesis with auxin

Answer 16

Cytokinin

Question 17

delays senesence

Answer 17

CK

Question 18

increases nutrient sink activity

Answer 18

CK

Question 19

regulates events on the cell cycle leading to mitosis

Answer 19

CK

Question 20

promotes maturation of chloroplast

Answer 20

CK

Question 21

regualate protein synthesis

Answer 21

ck

Question 22

regulates calcium concentration

Answer 22

ck

Question 23

promotes fruit ripening

Answer 23

ethylene

Question 24

causes abscission, sheddung of leaves flowers fruits and other organs

Answer 24

ethylene

Question 25

induces epinastic curvature of leaves

Answer 25

ethylene

Question 26

induce root formation in leaves stems and flowers

Answer 26

ethulene

Question 27

triggers foliar and flower senescence

Answer 27

ethylene

Question 28

maintenance of seed and bud dormancy

Answer 28

Aba

Question 29

induction of stomatal closure under water stress

Answer 29

aba

Question 30

stimulation of stress tolerance

Answer 30

aba

Question 31

inhibition of growth (prevents cell wall acidification_

Answer 31

aba

Question 32

stimulation of water and ion flux in roots

Answer 32

aba

Question 33

reduction in leaf area while increasing water absorbing area of roots in stressed plants

Answer 33

aba