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प्रश्न
Choose the correct answer:
Stomata can open in night also in _______________
विकल्प
xerophyte
gametophyte
hydrophyte
none of these
उत्तर
Stomata can open in night also in xerophyte
APPEARS IN
संबंधित प्रश्न
Name the following:
openings on the stem through which transpiration occurs.
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 do you mean by transpiration?
Differentiate Between Cobalt chloride paper and Goat’s bladder.
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.
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
State the Location:
Guard cells
Mark the most appropriate answer in the following:
In the mechanism of opening and closing of stomata, the important factor is
Define the following term:
Cuticle
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.
