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प्रश्न
The paper used to demonstrate unequal transpiration in a dicot leaf is ______.
विकल्प
Filterpaper
Litmus paper
Starch paper
Cobalt chloride paper
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उत्तर
The paper used to demonstrate unequal transpiration in a dicot leaf is Cobalt chloride paper.
Explanation:
One can use dry Cobalt chloride paper to illustrate transpiration. When this is placed on a transpiring leaf, it changes colour from blue to pink.
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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:
Why are glass slides placed over the dry cobalt chloride papers?
Where are stomata generally found?
What is the advantage of wilting to a plant?
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.
Draw a neat diagram of the stomatal apparatus found in the epidermis of leaves and label the Stoma, Guard cells, Chloroplast, Epidermal Cells, cell wall and Nucleus.
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
State the Location:
Stomata
Give a reason/suitable explanation.
More transpiration occurs from the under surface of a dicot leaf.
Give a reason/suitable explanation.
Leaves of some plants wilt during midday and recover in the evening.
The given figure represents an experiment:
- Leaf A was coated with grease on both surfaces.
- Leaf B was coated with grease on the lower surface.
- Leaf C was coated with grease on the upper surface.
- Leaf D was left without any application of grease. All four leaves A, B, C and D were left in a room for about 24 hours.
- Which leaf dries first? Give reason.
- Which leaf dries last? Give reason.
