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प्रश्न
State the main function of the Guard cells
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उत्तर
Help to regulate the rate of transpiration by opening and closing of stomata
APPEARS IN
संबंधित प्रश्न
Name the following:
The wax-like layer on the epidermis of leaves which reduces transpiration.
Lenticels or stomata (Which one remains open always?)
Fill in the blank with the suitable term given below:
Transportation in plants is carried out by a __________ system.
Fill in the blank with the suitable term given below:
Most water gets evaporated from the plant from its __________.
How water absorbed by the roots is important for the plants?
Which experiment demonstrates the transport of food material in plants by phloem?
Active transport involves ______
What is Active transport?
Active transport is one in which the ions outside the roots move in by utilising ______.
Three cylinders of potato were carefully dried on blotting paper and weighed. Each piece weighed 3 grams. Each one was placed in the beaker as shown below:
Answer the following questions:
- After 48 hours, which potato cylinder would be the heaviest?
- The movement of which substance is mainly responsible for the weight change in the potato cylinders?
- Name and define the process which is responsible for the movement of the substance mentioned in answer (b).
- Write specific names of the processes which occur in beakers B and C. [kinds of processes defined in answer (c)].
- Would there be any difference in the weight of the potato cylinder in beaker A after 48 hours? Give reason.
