A drug that specifically inhibits voltage-gated calcium channels would most directly inhibit

A) depolarization of nerve cell membranes.
B) repolarization after depolarization of nerve cell membranes.
C) hyperpolarization of nerve cell membranes.
D) presynaptic neurotransmitter release.
E) postsynaptic receptor signal response.


Ans: D) presynaptic neurotransmitter release.

Biology & Microbiology

You might also like to view...

Mycorrhizae are the mutualistic relationship between fungi and the roots of certain plants.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Side A is __________ to side B

a. hypertonic b. hypotonic c. isotonic d. either isotonic or hypertonic e. either isotonic or hypotonic

Biology & Microbiology

Primary xylem and phloem are produced by the

A. protoderm. B. procambium. C. leaf primordial. D. proembryo. E. ground meristem.

Biology & Microbiology

Which of the following is NOT a typical characteristic of most bacterial plasma membranes?

A) site of energy production B) composed of a phospholipid bilayer C) contains proteins D) contains cholesterol E) is selectively permeable

Biology & Microbiology