CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
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Chapter 37, Problem 6TYU

Suppose a particular neurotransmitter causes an IPSP in postsynaptic cell X and an EPSP in postsynaptic cell Y. A likely explanation is that

  1. A.    the threshold value in the postsynaptic membrane is different for cell X and cell Y.
  2. B.     the axon of cell X is myelinated, but that of cell Y is not.
  3. C.     only cell Y produces an enzyme that terminates the activity of the neurotransmitter.
  4. D.    cells X and Y express different receptor molecules for this particular neurotransmitter.
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