Which of the following best describes the behavior of a gated channel?
(a) It stays open continuously when stimulated.
(b) It opens more frequently in response to a given stimulus.
(c) It opens more widely as the stimulus becomes stronger.
(d) It remains closed if unstimulated.
(b)
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Cryptococcus neoformans is widely distributed in nature, and aerosolization is a prerequisite to most infections. This organism is most often associated with exposure to:
a. contaminated soil. b. pigeon excreta. c. contaminated food. d. rat excreta.
An action potential is propagated down an unmyelinated neuronal plasma membrane because it stimulates voltagegated
____ channels adjacent to it. (Choose the most accurate answer.)
a. Na+ b. Ca2+ c. K+ d. Na+ and Ca2+ e. K+ and Ca2+
states Page 61that all organisms are composed of cells, the smallest units of living matter and that new cells come only from preexisting cells.
What will be an ideal response?
Biology
What will be an ideal response?