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प्रश्न
Distinguish between the following:
Stomata and lenticels
उत्तर
| Stomata | Lenticels | ||
| 1. | There are two guard cells in the shape of beans surrounding these small openings. They can be opened and closed. | 1. | There are no guard cells surrounding these special openings. They remain open all the time |
| 2. | They are mostly found on the abaxial surface of leaves. | 2. | These are found on the surface of older woody stems. |
| 3. | These are responsible for the diffusion of gases during photosynthesis and respiration. They also help in transpiration. | 3. | These are mainly responsible for diffusion of gases during respiration. They also help in transpiration. |
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संबंधित प्रश्न
Given ahead is the diagram of an experimental set up to study the process of transpiration in plants. Study the same and then answer the questions that follow:
Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
Given ahead is the diagram of an experimental set up to study the process of transpiration in plants. Study the same and then answer the question that follow:
Why are glass slides placed over the dry cobalt chloride papers?
State the functions of guard cells.
Given below is the diagram of an experimental set up to study the process of transpiration in plants. Study the same and then answer the questions that follow:
(i) What is the colour of dry cobalt chloride paper?
(ii) Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
(iii) Why axe glass slides placed over the dry cobalt chloride papers?
(iv) After about half an hour what change, if any, would you expect to find in the cobalt chloride paper placed on the dorsal and ventral sides of the leaf? Give a reason to support your answer.
(v) Define the term ‘transpiration’.
Given below is an apparatus used to study a particular process in plants. Study the same and answer the questions that follow :
(i) Name the apparatus.
(ii) Mention one limitation of this apparatus.
(iii) Which phenomenon is studied with the help of this apparatus?
(iv) What is the function of the part marked ‘reservoir’?
(v) What is the role of the air bubble in the experiment?
Draw a labeled diagram of the stomatal apparatus and label the following in it: Stoma, Guard cells, Chloroplast, Epidermal cells, and Cell wall.
Give Technical Term
Which side of the leaf has more stomata?
Complete the following sentence with appropriate word:
Openings found on the undersurface of the dorsiventral leaf are ___________.
Choose the Odd One Out
Name the three kinds of transpiration.
