HARD
Earn 100

Which of the following plant hormone is responsible for phototropism?
(a)Ethylene
(b)Auxin
(c)ABA
(d)None of these

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Important Questions on Coordination and Response
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Plant response in the direction of light. Explain with figure.

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In figure (a), (b) and (c), which of the following appears more accurate and why?

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State one difference in each of the following with respect to aspect stated in the bracket.
Differentiate between: Thigmotropism and chemotropism (movement of plants in response to).

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State one difference between each of the following pairs of terms:
Thigmotropism and Chemotropism.

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Write briefly about the following as specified for each in the brackets.
Chemotropism (Define)

