Facilitated diffusion is characterized by all | vedclass

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(B) Facilitated diffusion is a type of passive transport where molecules move across the membrane along the concentration gradient (from a region of h

Vedclass · Accepted Answer

Uphill transport

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(B) Facilitated diffusion is a type of passive transport where molecules move across the membrane along the concentration gradient (from a region of higher concentration to a region of lower concentration). Since it follows the concentration gradient,it is a 'downhill' process and does not require metabolic energy $(ATP)$. It requires specific membrane proteins (carrier or channel proteins) to facilitate the movement of hydrophilic molecules. It is also highly selective in nature. Therefore,'Uphill transport' is the incorrect characteristic,as it describes active transport.

Property	Simple Diffusion	Facilitated Transport	Active Transport
Transport Saturation	$P$	Yes	Yes
Uphill Transport	No	No	$Q$
Requirement of Energy	No	$R$	Yes

Facilitated diffusion is characterized by all,except

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In a passive transport across a membrane,when two protein molecules move in opposite directions and independent of each other,it is called as $.......$

Which of the following processes is immediately affected by the loss of $ATP$?

Which of the following is true for both active transport and facilitated diffusion?

Choose the correct option for $P, Q$ and $R$.
Property Simple Diffusion Facilitated Transport Active Transport
Transport Saturation $P$ Yes Yes
Uphill Transport No No $Q$
Requirement of Energy No $R$ Yes

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Identify the processes occurring in $(I)$,$(II)$,and $(III)$ based on the provided diagram.

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