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1. What is nastic movement?
a. The unidirectional movements of a plant or its part in response to the stimulus are known as nastic movements.
b. Nastic movements are the responses which are independent of the direction of the stimulus.
c. Nastic movements are growth-independent movements.
d. Nastic movements are more or less permanent and are irreversible.
e. Nastic movements are found only in a few specialized plants.
f. Nastic movements are slow actions.
2. Name the plant part
a. Which bends in the direction of gravity but away from the light.
b. Which bends towards light but away from the force of gravity.
i. bends in the direction of gravity but away from the light.
ii. Roots are positively geotropic and positively phototropic.
iii. bends towards light but away from the force of gravity.
iv. Stem is positively phototropic and negatively geotropic.
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