Which factor is inhibitory to digestive functions?
a. acetylcholine
b. histamine
c. gastrin
d. somatostatin
e. all are stimulatory
D
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Which of the following is/are found in all cells of excitable and nonexcitable tissues?
a. a threshold potential b. a resting membrane potential c. gated ion channels d. all of the above characteristics e. mechanically-gated channels
Hyperventilation is a cause of:
a. respiratory acidosis b. respiratory alkalosis c. metabolic acidosis d. metabolic alkalosis e. pulmonary edema
The inner membrane of a mitochondrion contains the protein ________, which harnesses the energy created by H+ flow to produce ATP by a process called ________.
A. enzyme complex; proton pumping B. cytochrome c; reduction C. ATP synthase; the chemiosmotic mechanism D. enzyme complex; reduction E. ATP synthase; oxidation
What are the functions of the pancreas?
A. Production of renin and regulation of blood pressure. B. Storage and movement of food into the small intestine. C. Concentration and storage of bile until it is needed for digestion. D. Production of insulin and certain enzymes that aid in digestion.