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प्रश्न
Mark the most appropriate answer in the following:
Transpiration pull will be maximum under which of the following conditions?
विकल्प
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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उत्तर
open stomata, dry atmosphere and moist soil.
संबंधित प्रश्न
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Most transpiration occurs during midday.
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"?
Briefly explain how the rate of transpiration is affected by:
Humidity of the atmosphere
Give Reasons for the following:
Land plants die if their roots remain waterlogged.
Give Reasons for the following:
Forest bring in the rain, transpiration is the cause.
Explain the Term
Lenticel
Study the diagram given below and answer the questions that follow:
(i) Name the process being studied in the above experiment.
(ii) Explain the process mentioned in (i) above.
(iii) Why is oil placed over water?
The following diagram is set up to demonstrate an experiment.
Five plants A, B, C, D, and E were placed in a beaker containing water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant D in plant B, upper surfaces of all the leaves were covered with Vaseline, in-plant C the lower surfaces of all the leaves were covered with Vaseline and plant E was exposed to strong light. The beakers were then left for a few hours and at the end of the experimental period, weights of each beaker were taken.
Write the correct answer out of the five available choices given under each question:
I. In which beaker would you expect the greatest decrease in weight?
(i) A (ii) B (iii) C (iv) D (v) E
II. In which beaker the change of weight would be minimum?
(i) A (ii) B (iii) C (iv) D (v) E
III. Which plant would remain healthy for a longer period of time?
(i) A (ii) B (iii) C (iv) D (v) E
IV. In this experiment which plant can be considered as the uncontrolled one?
(I) A (ii) B (iii) C (iv) D (v) E
V. The difference of weight would b maximum between:
(i) A and B (ii) A and C (iii) A and D (iv) A and E (v) D and E
Write the functional activity of the following structure:
Cuticle
