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(A) Diffusion is the passive movement of molecules from a region of higher concentration to a region of lower concentration along the concentration gr

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Diffusion

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(A) Diffusion is the passive movement of molecules from a region of higher concentration to a region of lower concentration along the concentration gradient.It does not require any carrier proteins or energy expenditure.In contrast,$Na^+$ and $K^+$ transport (via pumps) and the active transport of sugars and amino acids require specific carrier proteins and energy $(ATP)$ to move substances against their concentration gradient.

$S.no.$	Property	Facilitated diffusion	Active Transport	Simple Diffusion
$I.$	Highly specific	Yes	Yes	No
$II.$	Energy as $ATP$	No	Yes	No
$III.$	Saturation point reached when all carrier proteins are used	Yes	Yes	No
$IV.$	Require transport proteins	Yes	Yes	No

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

Similar Questions

By which processes does passive transport occur?

What are the different means of transport in plants?

The diffusion of any substance across a membrane depends on which of the following?

$A$: Simple diffusion is a passive transport process.
$R$: Passive transport does not require energy.

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