Multiple Choice
What are the two main types of active transport in cells?
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6. The Membrane
Active Transport
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Which of the following membrane activities requires energy from ATP?
A
Simple diffusion
B
Active transport
C
Osmosis
D
Facilitated diffusion
Verified step by step guidance1
Understand the concept of membrane transport: Membrane transport can be passive or active. Passive transport does not require energy, while active transport does.
Identify the types of passive transport: Simple diffusion, osmosis, and facilitated diffusion are all passive transport processes. They rely on the concentration gradient and do not require energy from ATP.
Define active transport: Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, against the concentration gradient. This process requires energy, usually in the form of ATP.
Recognize the role of ATP in active transport: ATP provides the energy needed to change the shape of transport proteins in the membrane, allowing them to move substances against their concentration gradient.
Conclude that among the given options, active transport is the only process that requires energy from ATP, as it moves substances against their concentration gradient.
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