Multiple Choice
Carrier proteins that transport molecules via facilitated diffusion require energy from ATP.
9. Transport Across Membranes
Passive Transport: Diffusion and Osmosis
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Which of the following transport proteins transports two molecules across the membrane in the same direction?
A
Uniport
B
Symport
C
Antiport
D
Biport
Verified step by step guidance1
Understand the types of transport proteins: Transport proteins facilitate the movement of molecules across the cell membrane. The main types are uniport, symport, and antiport.
Define uniport: A uniport transports a single type of molecule across the membrane in one direction.
Define symport: A symport transports two different molecules across the membrane in the same direction simultaneously.
Define antiport: An antiport transports two different molecules across the membrane in opposite directions.
Identify the correct transport protein: Based on the definitions, a symport is the transport protein that moves two molecules in the same direction across the membrane.
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Passive Transport: Diffusion and Osmosis practice set
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