b) contraction of the radial pupillary muscles.
c) conversion of 11-trans to 11-cis retinal.
d) a decrease in the size of the pupil.
e) parasympathetic stimulation to the pupil.
6) the renal threshold for glucose is approximately ________ mg/dl.
a) 75
b) 90
c) 100
d) 140
e) 180
7) if a color-blind (x-linked recessive trait) man marries a woman who is heterozygous
for the trait, what proportion of their male offspring can be expected to be color blind?
a) 1/2
b) 1/4
c) 1/8
d) 3/4
e) 100 (all)
8) if acetylcholine (ach) causes inhibition of a postsynaptic neuron, to what type of
membrane channel did the ach bind?
a) mechanically-regulated channel
b) voltage-regulated sodium channel
c) voltage-regulated calcium channel
d) chemically-regulated potassium channel
e) chemically-regulated sodium channel
9) the tarsus contains ________ bones.
a) 4
b) 5
c) 6
d) 7