Define the following terms:
$(1)$ Antiport
$(2)$ Active transport
$(1)$ Antiport
$(2)$ Active transport
(N/A) $(1)$ Antiport: In this type of transport,two different molecules move across the membrane in opposite directions.
$(2)$ Active transport: This is the movement of molecules across a membrane against the concentration gradient (from lower concentration to higher concentration). This process requires carrier proteins and the expenditure of metabolic energy in the form of $ATP$.
$(2)$ Active transport: This is the movement of molecules across a membrane against the concentration gradient (from lower concentration to higher concentration). This process requires carrier proteins and the expenditure of metabolic energy in the form of $ATP$.
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Similar Questions
The diffusion of any substance across a membrane depends on which of the following?
Medium
View SolutionChoose 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.
$(1)$ 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.
Medium
View SolutionWhich of the following is true for both active transport and facilitated diffusion?
Medium
View SolutionIn active transport,
Medium
View SolutionChoose 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:
| 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:
Medium
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