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प्रश्न
State the functions of guard cells.
उत्तर
Guard cells regulate the opening and closing of stomata thus, control gas exchange and 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 question that follow:
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.
How do stomata differ from a lenticel?
Given below are the diagrams of a certain structure in plants in two conditions.
(i) Name the structure shown.
(ii) Name the parts numbered 1-5.
(iii) What is the most apparent difference between A and B in the structure shown?
(iv) Describe the mechanism which brings about the change in the structure depicted in A and B.
Name the following:
The process of getting rid of excess water in the form of water vapour through the stomata.
Name the following:
A plant having sunken stomata.
Complete the following sentence with appropriate word:
95% of the total transpiration takes place through ________.
Write the functional activity of the following structure:
Stomata
Assertion (A): The loss of excess water from the aerial parts of the plant in the form of water vapor is known as transpiration.
Reason (R): Stomata of the leaf perform transpiration.
Name the following:
The openings on the barks of trees through which transpiration occurs.
