Which statement best describes the relationship between GH and IGF-I. a. there is always a direct relationship between serum concentrations of GH and IGF-I b. IGF-I mediates most, if not all, of the...

Which statement best describes the relationship between GH and IGF-I.

a.      there is always a direct relationship between serum concentrations of GH and IGF-I

b.      IGF-I mediates most, if not all, of the growth-promoting actions of GH

c.      GH is protein anabolic, whereas IGF-I is not

d.      GH is produced only in the pituitary, whereas IGF-I is produced only in the liver.

IGF-I acts to:

a.      increase blood glucose

b.      stimulate lipolysis

c.      stimulate cellular division (hyperplasia)

d.      inhibit cartilage growth

e.      all of the above