Define uniport,symport and antiport. Do they require energy?

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Uniport,symport,and antiport are types of facilitated diffusion mediated by carrier proteins.
$1$. Uniport: In this process,a molecule moves across a membrane independent of other molecules.
$2$. Symport: In this process,two types of molecules cross the membrane simultaneously in the same direction.
$3$. Antiport: In this process,two types of molecules move in opposite directions across the membrane.
Energy requirement: These processes are types of facilitated diffusion,which is a passive transport mechanism. Therefore,they do not require energy $(ATP)$ to move molecules across the membrane.

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Similar Questions

Choose the correct sentences for diffusion:
$(1)$ In diffusion,molecules move in a random fashion.
$(2)$ Diffusion rates are affected by the gradient of concentration.
$(3)$ Diffusion is a slow process and is dependent on a 'living system'.
$(4)$ Movement by diffusion is passive.

In active transport,

Read carefully the given table and choose the option that correctly fills the blanks in it.
Property Simple Diffusion Facilitated Transport Active Transport
Requires special membrane proteins No $a$ Yes
Transport saturates No Yes $b$
Uphill transport $c$ No Yes
Requires $ATP$ energy No No $d$

Identify the values for $a, b, c, d$.

Which of the following processes requires membrane proteins?

Which process is responsible for short distance movement?

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