Multiple Choice QuestionsAuxin can be bioassayed by
Avena coleoptile curvature
Hydroponics
Potometer
Potometer
Through their effect on plant growth regulators, what do the temperature and light control in the plants?
Apical dominance
Flowering
Closure of stomata
Closure of stomata
Which one of the following generally acts as an antagonist to gibberellins?
Zeatin
Ethylene
ABA
ABA
What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows?
Green plants need light to perform photosynthesis.
Green plants seek light because they are phototropic
Light stimulates plant cells on the lighted side to grow faster
Light stimulates plant cells on the lighted side to grow faster
Typical growth curve in plants is
sigmoid
linear
Stair-steps shaped
Stair-steps shaped
Typical growth curve in plants is
sigmoid
linear
stair-steps shaped
stair-steps shaped
A drupe develop in
Wheat
pea
tomato
tomato
D.
tomato
In mango, coconut, plum, etc., the fruit is known as drupe (stony fruit).They develop from monocarpellary, superior ovaries and are one seeded. In mango, the pericarp is well differentiated into an outer thin epicarp, a middle fleshy edible mesocarp and an inner stony hard endocarp.
Phototropic curvature is the result of uneven distribution of
gibberellin
phytochrome
cytokinins
cytokinins
The technical term used for the androecium in a flower of China rose (Hibiscus rosa siensis( is
monadelphous
diadelphous
polyandrous
polyandrous
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