The channel "gate" is best described as a part of the channel
A) pore that contains a ring of uncharged residues that interact with specific ions.
B) pore that contains a ring of charged residues that interact with specific ions.
C) structure that can change shape to either close or open the access through the channel pore.
D) structure that responds directly to changes in voltage across the plasma membrane.
E) pore that aids in stripping water from hydrated ions before they enter the pore.
Correct Answer:
Verified
Q1: How thick is the plasma membrane of
Q2: Plasma membrane lipid molecules
A) allow ions to
Q3: The "selectivity filter" in an ion channel
Q4: How can protein molecules be positioned in
Q6: What is a cation?
A) A negatively charged
Q7: Channel "activation" is a(n)
A) increase in the
Q8: What is an anion?
A) A negatively charged
Q9: Hyperpolarization occurs when the membrane potential
A) does
Q10: When a large molecule binds to and
Q11: Deactivation occurs when a
A) channel opens in
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