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प्रश्न
Explain the Term :
Hydathode
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उत्तर
Hydathode: A water secreting gland found on the edges and tips of leaves of many plants.
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संबंधित प्रश्न
Which one of the following favours the fastest transpiration rate?
Briefly explain how the rate of transpiration is affected by
Intensity of light
Choose the correct answer:
In herbaceous plants, following percentage of absorbed water comes out __________
Briefly explain how the rate of transpiration is affected by:
Humidity of the atmosphere
Name the three types of transpiration.
Differentiate Between Transpiration and Evaporation.
Differentiate Between Transpiration and Translocation.
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
