Final Biol 373 Review questions with correct answers updated already passed

Final Biol 373 Review

A (even though technically blocks its not considered a blocker) - correct answer ✔✔Both norepinephrine
(NE) and phenylephrine, a drug

used as a decongestant, bind to alpha adrenergic receptors and elicit the same response. In this context,
NE is _____ of phenylephrine.

a. an agonist

b. an antagonist

c. an inhibitor

d. an agonist and blocker

e. an antagonist and competitor



c (low light sensitivity is achieved by rods - no rods in fovea) - correct answer ✔✔Which of the following
is/are true about the fovea?

a. Sensitivity in low light conditions is achieved by having many

photoreceptor cells at the fovea converge on a given ganglion cell.

b. It is densely populated with rods.

c. Receptive fields are very small.

d. a and c

e. a, b and c



ganglion cells - correct answer ✔✔in retina, action potentials are generated in



X is being reabsorbed - correct answer ✔✔if the clearance rate of X is less than the amount filtered, then
...



d - correct answer ✔✔In general, renal compensation for acidosis involves ...

a. secreting protons across the apical membrane into the tubular fluid.

b. secreting protons across the basolateral membrane into the interstitium.