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Question
Mark the most appropriate answer in the following:
Transpiration pull will be maximum under which of the following conditions?
Options
Open stomata, dry atmosphere and moist soil.
Open stomata, high humid atmosphere and well irrigated soil.
Open stomata, high humid atmosphere and dry soil.
Closed stomata, dry atmosphere and dry soil.
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Solution
open stomata, dry atmosphere and moist soil.
RELATED QUESTIONS
Which one of the following favours the fastest transpiration rate?
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Atmospheric humidity promotes transpiration from a green plant.
Why are the stomata in most plants more numerous on the lower surface of a leaf instead of being on the upper surface?
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Draw a neat, labelled diagram of a stomatal apparatus.
Distinguish between the following:
Transpiration and evaporation
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.
What is the purpose of keeping the test tube B in the experimental setup?
What are the disadvantages of transpiration?
Explain the Term
Transpiration
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 |
