Chemically-gated ion ________ open or close when signal molecules bind to the channel,allowing specific ions to diffuse through the channel.
A) channels
B) molecules
C) species
D) membranes
Correct Answer:
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Q6: Hormones are an example of intercellular communication
Q7: Tight and anchoring _ cause cells to
Q8: Synaptic signaling requires which of the following
Q9: Signals with short-lived,local effects are called
A)direct contact.
B)endocrine
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Q12: Located on or within the cell are
Q13: The class of cell surface receptors that
Q14: _ among cells is a hallmark of
Q15: Specific protein receptors are present for all
Q16: Which of the following is considered to
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