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Question
State the main function of the Guard cells
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Solution
Help to regulate the rate of transpiration by opening and closing of stomata
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RELATED QUESTIONS
Describe the role played by protein pumps during active transport in plants.
Active Transport and Diffusion [Significance in plants]
Fill in the blank with the suitable term given below:
The upward movement of sap that contains water and minerals is called _______ of sap.
Fill in the blank with the suitable term given below:
The leaves have more__________ on their lower surface.
How water absorbed by the roots is important for the plants?
Active transport is in a direction ______ to that of diffusion.
Differentiate between the following
Active transport and Passive transport.
Pumps are related to
What is Active transport?
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.
