Advertisements
Advertisements
प्रश्न
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:
Name the process being studies. Define the process.
Advertisements
उत्तर
Transpiration : Transpiration is loss of water in the form of water vapour from aerial part of plant.
APPEARS IN
संबंधित प्रश्न
Name the factors which affect the rate of transpiration? State their role in each case.
Mention the two ways in which transpiration helps the plants.
Give Reasons for the following:
Plants absorb more water than their requirement
Give Reasons for the following:
Balsam plants wilt during midday even if the soil is well watered.
What are the advantages of transpiration to the plant?
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental set-up was placed in bright sunlight. Study the diagram and answer the following questions:
- Name the process intended for the study.
- Define the above mentioned process.
- When the weight of the test tubes (A and B) is taken before and after the experiment, what is observed? Give reasons to justify your observations in A & B.
- What is the purpose of keeping the test tube B in the experimental set-up?
- What is the purpose of putting oil in the test tube?
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 |
