Balance is the responsibility of which sensory organ?
A. Ear
B. Eye
C. Nose
D. Throat
Answer: A
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Membrane proteins perform all of the following functions except
A) anchoring the cell to other structures. B) binding to extracellular ligands. C) transporting solutes across the membrane. D) catalyzing chemical reactions. E) metabolizing glucose to gain energy.
The parasympathetic division of the ANS causes __________ of airway smooth muscle; therefore, resistance is __________.
a. relaxation; increased b. constriction; increased c. relaxation; decreased d. constriction; decreased
In comparison to skeletal muscle fibers, the contractile fibers of the heart are depolarized for _____ period of time
a) a shorter b) a longer c) the same
Which of the following is NOT true about CCK (cholecystokinin)?
A. Uses cyclic AMP as the second messenger to pancreatic acinar cells B. Stimulates the production of pancreatic digestive enzymes C. Controlled through a positive feedback loop D. Released in response to fat and protein in the chyme