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Question
Active transport involves ______
Options
movement of molecules from lower to higher concentration
expenditure of energy
it is an uphill task
all of the above
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Solution
Active transport involves all of the above.
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RELATED QUESTIONS
Active Transport and Diffusion [Significance in plants]
Name the following:
The wax-like layer on the epidermis of leaves which reduces transpiration.
Fill in the blank with the suitable term given below:
Most water gets evaporated from the plant from its __________.
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 one in which the ions outside the roots are ___________.
Differentiate between the following
Active transport and Passive transport.
Identify the CORRECT statement about the active absorption of water.
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.
