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प्रश्न
Which of the following process requires energy?
विकल्प
active transport
diffusion
osmosis
all of them
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उत्तर
active transport
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संबंधित प्रश्न
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.
is the following statement true (T) or false (F)? Mark T or F
‘Girdling experiment’ demonstrates food synthesis in plants.
Active transport is one in which the ions outside the roots are ___________.
Active transport is in a direction ______ to that of diffusion.
Active transport involves ______
Identify the INCORRECT statement from the following.
The process for which energy is required is ______.
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.
