Conversion of dwarf pea plant to taller pea plants is by the action of
ABA
Auxin
Gibberellins
All of the above
IAA promotes enlargement of
stem
root
fruit
leaf
Cytokinins have special function of promoting:
The number of flowers
The amount of auxins
Cell division
Cell destruciton
Responding to changes in environment in an organism is termed as
Survival
Irritability
Stimulus
None of these
Plants may be made to grow at a faster rate by applying a chemical called
Dichlorophenoxy acetic acid
Trichloropenoxy acetic acid
Gibberellic acid
Phosphon
Circadian rhythms are based on approximately a
2- hour period
7-day period
24- hour period
365- day period
Auxins in plants are synthesized at
Nodes
Petiole
Meristems
Internodes
A cell or group of cells which are specialized to detect changes in the environment and trigger impulses are known as
Effectors
Receptors
Suppressors
B and C
Prominent action of gibberellin is to
Increase the number of buds
Increase the size of leaves
Make dwarf plant tall
Making tall plants taller
Shedding of leaves and fruits is due to the hormone:
I.A.A
N.A.A
Abscisic acid
