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(D) The means of transport in plants are classified into four main types:$(1)$ Diffusion: The movement of molecules from a region of higher concentrat

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(D) The means of transport in plants are classified into four main types:$(1)$ Diffusion: The movement of molecules from a region of higher concentration to a region of lower concentration.$(2)$ Facilitated Diffusion: The movement of molecules across a membrane with the help of special membrane proteins without the expenditure of energy.$(3)$ Passive Symports and Antiports: $A$ type of facilitated transport where two molecules move together across the membrane.$(4)$ Active Transport: The movement of molecules against the concentration gradient,which requires the expenditure of energy in the form of $ATP$.

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

What are the different means of transport in plants?

Similar Questions

Identify a type of molecular movement which is highly selective and requires special membrane proteins,but does not require energy.

Compare various transport processes.

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

$P, Q$ and $R$ respectively are:

What is active transport?

What is meant by influx and efflux?

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