Growth And Stimuli

Question 1

Plant hormone involved in abscission and fruit development

Answer 1

Auxin

Question 2

Plant hormone involved in stem elongation and seed germination, flowering

Answer 2

Gibberellins

Question 3

Hormone involved in cell division, organogenesis, from root

Answer 3

Cytokinins

Question 4

____promotes rooting and ____promotes shoot growth

Answer 4

Auxin

Cytokinins

Question 5

Hormone involved in fruit ripening

Answer 5

Ethylene

Question 6

Only gaseous hormone is ____

Answer 6

Ethylene

Question 7

The counteraction hormone; inhibits processes like stomatal opening and seed germination

Answer 7

Abscisic acid

Question 8

Two ways plants communicate with environment

Answer 8

Thermogenicity, chemical signals (MeSA)

Question 9

A directional movement in response to a directional stimulus

Answer 9

Tropism

Question 10

A movement in response to a stimulus that is independent of stimulus direction

Answer 10

Nastic movement

Question 11

Tropism in response to gravity; how does it work

Answer 11

Gravitropism; auxin accumulates on lower side, stimulating elongation on lower side in stems and upper side in roots

Question 12

Tropism in response to touch

Answer 12

Thigmotropism

Question 13

Tropism in response to light; how does it work

Answer 13

Phototropism; auxin accumulates on shady side

Question 14

Tropism in response to sun; how does it work

Answer 14

Heliotropism; turgor pressure or asymmetric growth

Question 15

Nastic movement in response to darkness

Answer 15

Nyctinasty

Question 16

Nastic movement in response to mechanical stimuli

Answer 16

Siesmonasty