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Question
Give Technical Term
Opening found on the undersurface of the dorsiventral leaf.
Solution
Stomata
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RELATED QUESTIONS
Name the following:
Any two parts of a leaf which allow transpiration.
The apparatus shown in the following diagram is Garreau’s potometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After few hours, CaCl2 vials were taken out and weighed again.
What is the purpose of using a manometer?
Explain the Term
Stomatal transpiration
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’.
Complete the following sentence with appropriate word:
Openings found on the undersurface of the dorsiventral leaf are ___________.
Maximum transpiration occurs through ______.
Name the three kinds of transpiration.
Give a reason/suitable explanation.
Leaves of some plants wilt during midday and recover in the evening.
