Water loss from plants is prevented by which of the following hormone:
G.A
NAA
IAA
ABA
The hormone that helps in parthenocarpy
Abscisic acid
Gibberellin
Ethylene
Cytokinin
The use of iodised salt is recommended to prevent
diabetes
gonorrhoea
dysentery
goitre
The growing region of a root is :
Tip
Below the tip
In between nodes
Lower part of stem
Apical dominance means
Terminal bud growing nonstop
Terminal bud suppressing the growth of lateral buds
Removal of apex of the stem
Terminal bud and lateral branches grow equally
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
Growth inhibiting hormones are
Cytokinin and Auxin
Auxin and gibberellin
ABA and ethylene
Indole - 3 - acetic acid
Responding to changes in environment in an organism is termed as
Survival
Irritability
Stimulus
None of these
Dicotyledonous weeds are destroyed by a chemical called:
2-4 dichlorophenoxy acetic acid
Naphthalene acetic acid
