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प्रश्न
Active transport involves ______
पर्याय
movement of molecules from lower to higher concentration
expenditure of energy
it is an uphill task
all of the above
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उत्तर
Active transport involves all of the above.
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संबंधित प्रश्न
State the main function of the Guard cells
Name the plant tissue which helps in carrying the food to different parts of a plant.
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.
Which experiment demonstrates the transport of food material in plants by phloem?
Active transport is in a direction ______ to that of diffusion.
Differentiate between the following
Active transport and Passive transport.
Which of the following process requires energy?
The process for which energy is required is ______.
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.
