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(C) Active transport is the process of moving molecules across a cell membrane from a region of lower concentration to a region of higher concentratio

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Active transport

Vedclass · Answer

(C) Active transport is the process of moving molecules across a cell membrane from a region of lower concentration to a region of higher concentration.This process requires energy in the form of $ATP$ because it moves substances against the concentration gradient.In contrast,diffusion and facilitated diffusion are types of passive transport that move substances along the concentration gradient and do not require energy.

Property	Simple Diffusion	Facilitated Transport	Active Transport
Highly selective	No	Yes	...
Uphill transport	...	...	Yes
Requires $ATP$	...	...	...

Transport occurs against the concentration gradient.

Similar Questions

Which of the following does not require carrier molecules during transport through cell membranes?

By what mechanism does water move through the vessels and tracheids of roots, stems, and leaves?

Define the following terms:
$(i)$ Passive transport
$(ii)$ Facilitated diffusion

Given below is a table. Fill in the gaps.
Property Simple Diffusion Facilitated Transport Active Transport
Highly selective No Yes ...
Uphill transport ... ... Yes
Requires $ATP$ ... ... ...

$P -$ Statement: Simple diffusion is a process of passive transport.
$Q -$ Reason: Passive transport does not require energy.

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