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Question

Choose the correct answer from the alternatives given.
Which of the following processes requires the greatest expenditure of energy by the cell?
  1. Facilitated diffusion
  2. Diffusion
  3. Active transport
  4. Osmosis

A
Diffusion
B
Osmosis
C
Active transport
D
Facilitated diffusion
Solution
Verified by Toppr

In one form of transport across the cell membrane, ATP is utilized. The utilization of an ATP molecule provides the cell with an energy boost which enables the transport of different molecules across the cell membrane. This is termed as active transport of molecules across the cell membrane.

So, the correct answer is 'Active transport'.

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