Which of the following are true about gap junctions?
A) They are important for intercellular communication.
B) Polar molecules smaller than 1 kDa can pass through them.
C) The channels stay open seconds to minutes.
D) All of the answers are correct.
E) None of the answers is correct.
Correct Answer:
Verified
Q22: Ion channels
A) can be selective.
B) exist in
Q23: How does the potassium channel maintain selectivity
Q24: Membrane transporters that couple the downhill flow
Q25: What is simple diffusion? Provide an example.
Q26: Where are gap junctions found?
A) between nerve
Q28: In the potassium ion channel, which of
Q29: As potassium moves through the ion channel,
Q30: What clues provided evidence of the mechanism
Q31: What is the function of selectivity filter
Q32: Channels that open in response to membrane
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