BIO 4163, Final Examination Sampler

Choose the best answer for each question
1.   In the female, a lesion in the hypothalamus that destroyed the area responsible for the secretion of GnRH would cause
a.   inhibition of estrogen secretion
b.   excessive inappropriate hair growth
c.   increased ovulation
d.   cyclical release of LH
 
2.   I am an enzyme produced by the chief cells in the stomach; I promote the digestion of proteins. What am I?
a.   amylase
b.   bile
c.   lactase
d.   pepsin
 
3.   Removal of the testis from the male embryo
a.   keeps the placenta from producing progesterone
b.   changes the chromosomal complement from 23+Y to 23+X
c.   causes the formation of female external genitalia
d.   has no effect
 
4.   Studies have shown that the syncytiotrophoblast [the outer layer of the trophoblast] does not express class I human leukocyte antigens [HLA antigens].
Answer {a} if true, {b} if false
 
5.   Substances move from the glomerulus into Bowman’s capsule by the process of
a.   osmosis
b.   diffusion
c.   active transport
d.   filtration