Advertisements
Advertisements
प्रश्न
Write the functional activity of the following structure:
Hydathodes
Advertisements
उत्तर
Plants secrete an excess of water through hydathodes when the atmosphere is very humid and the transpiration process cannot occur.
APPEARS IN
संबंधित प्रश्न
Briefly explain how the rate of transpiration is affected by
Intensity of light
Answer the following (only in few words);
In which form, water comes out in transpiration?
Study the diagram given alongside and answer the questions that follow:
(i) Explain the physiological process of being study.
(ii) What will be the observations in the two test-tubes after about 2-3 days?
(iii) Give a reason for your answer in (ii) above.
(iv) Why is the surface of water covered with oil?
(v) State the purpose of setting up test tube B.
Give Technical Term
Main function of lenticel.
Give Technical Term
The apparatus used to compare the rate of transpiration in cut shoot.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
More transpiration occurs from the upper surface of a leaf.
State the Location:
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 |
Mark the most appropriate answer in the following:
Transpiration is very low during storms due to:
