Assertion (A): Transpiration is a necessary evil for plants.

Reason (R): Sometimes transpiration leads to excessive loss of water causing the wilting of leaves.

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Solution

The correct answer is option: c - A and R are true and R is the correct explanation of A.

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Similar questions

Give suitable explanation for the following :

(a) A higher rate of transpiration is recorded on a windy day rather than on a calm day.

(b) Excessive transpiration results in the wilting of the leaves.

(d) More transpiration occurs from the lower surface of a dorsiventral leaf.

(e) Cork and bark of trees help in preventing loss of water.

(f) Perspiration and transpiration help to cool the body temperature of the organism.

(g) On a bright sunny day, the leaves of certain plants roll up.

Fill in the blanks :

(a) Transpiration is the loss of water as water..................... from the .............parts of the plant.

(b) Closing of...................and shedding of leaves reduce.................

(c) Transpiration helps in creating .......................force and in eliminating excess...............................

Assertion: Less water content in soil decreases transpiration in plants.

Reason: Dehydration leads to closure of stomata on the surface of leaves.

excessive transpiration results in wilting of leaves .why

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