The extent of target cell activation depends on...

With a couple of homework problems...

1.) The extent of target cell activation depends on:
a) blood levels of hormone
b) number of receptors on/in target cell
c) affinity of receptor for hormone
d) all of the above
e) A and B
f) none of the above


2.) Hormones
a) are usually produced in large quantities by certain cells
b) usually affect cells nearby the hormone producing cell
c) bind only to those cells that have receptors for that specific hormone
d) are either lipids or polysaccharides
e) A and B
f) A and C

and the last one is.....

Which of the following is not true concerning regulation of hormone secretion?
a) the secretion rate of some hormones is directly controlled by the blood levels of certain chemicals.
b) the secretion rate for some hormones is controlled directly by another hormone
c) secretion of hormones is regulated by positive feedback mechanisms that keep the body functioning within a narrow range of values
d) secretion rate of some hormones is controlled by the nervous system
e) all the above are true



please help me.....