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Question
Briefly explain how the rate of transpiration is affected by
Intensity of light
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Solution
During the day, the stomata are open to facilitate the inward diffusion of carbon dioxide for photosynthesis. At night they are closed. Hence more transpiration occurs during the day. During cloudy days, the stomata are partially closed and the transpiration is reduced.
RELATED QUESTIONS
Name the following.
The process by which the aerial parts of a green plant give out water as water vapour.
Choose the correct answer:
Who had said that "transpiration is a necessary evil"?
Explain the Term
Lenticel
Differentiate Between Transpiration and Perspiration.
Name the following:
Plants in which lenticular transpiration.
Give Technical Term
The apparatus used to compare the rate of transpiration in cut shoot.
Write the functional activity of the following structure:
Hydathodes
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Transpiration | (a) Cacti plants |
| (ii) Movement of water | (b) Stomata |
| (iii) Guttation | (c) Maize plant |
| (iv) Low rate of transpiration | (d)Xylem |
| (v) The high rate of transpiration | (e) Hydathodes |
