Multiple Choice
K+ leak channels are important for doing what?
9. Transport Across Membranes
Ion Channels and Membrane Potential
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Ion channels require energy to transport substances across a membrane.
A
True
B
False
Verified step by step guidance1
Understand the function of ion channels: Ion channels are proteins that form pores in cell membranes, allowing ions to pass through by diffusion.
Recognize the difference between passive and active transport: Passive transport does not require energy, while active transport does.
Identify the type of transport associated with ion channels: Ion channels facilitate passive transport, where ions move down their concentration gradient without the use of cellular energy.
Consider the role of the concentration gradient: The movement of ions through ion channels is driven by the concentration gradient, which is a form of passive transport.
Conclude that ion channels do not require energy: Since ion channels operate via passive transport, they do not require energy to transport substances across a membrane.
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