Sympathetic nerve fibers can cause the release of HCl from parietal cells.
Answer the following statement true (T) or false (F)
False
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Which situation describes a feedforward mechanism?
A. A drop in core body temperature triggers shivering. B. An increase in core body temperature stimulates sweating. C. The smell of rotten food on a plate triggers the vomit reflex. D. Food in the stomach triggers the production of stomach acid. E. Blood glucose returns toward normal an hour after a meal.
Fatty acids consist mainly of carbon and hydrogen, and so fatty acids are
A. nonpolar and do not dissolve in water.?B. nonpolar and dissolve in water.?C. polar and do not dissolve in water.?D. polar and dissolve in water.
Which statement is NOT true?
A) As much as one fourth of the cardiac output may flow to the kidneys at any given moment. B) The kidneys do not reabsorb filtered waste products. C) The urinary bladder is filled by two ducts, called ureters, and emptied by the single urethra. D) Women are more likely to develop urinary tract infections than men. E) The blood supply to the kidneys comes through the renal arteries.
The level of protein structure primarily involved in determining enzyme activity is the ________ enzyme.
A. primary B. secondary C. tertiary D. quaternary