The first means by which ATP is produced at the onset of contractile activity is
a. transfer of energy and phosphate from creatine phosphate to ADP.
b. oxidative phosphorylation.
c. glycolysis.
d. degradation of myoglobin.
e. none of these answers.
A
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Which is caused by increased levels of the hormone cholecystokinin?
A. Secretion of HCO3- from the pancreatic duct cells B. Contraction of the gallbladder C. Contraction of the sphincter of Oddi D. Inhibition of pancreatic enzyme secretion E. Secretion of gastric H+
Hormones that slow tumor growth are called
A) transferrins. B) tumor necrosis factors. C) interferons. D) radiation agents. E) chemotherapins.
Lymphocyte differentiation occurs in the
A. adipose tissue. B. pineal gland. C. thyroid. D. thymus gland.
The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter. Specifically, these events involve release of
A. chyle in the secretory phase of digestion B. lipase in the intestinal phase of digestion. C. secretin in the cephalic phase of digestion. D. CCK in the intestinal phase of digestion. E. gastrin in the gastric phase of digestion.