The androgen-binding protein functions to:
A. confer responsiveness of certain cells to male sex hormones.
B. transport androgens in the plasma.
C. bind and maintain high concentrations of testosterone in the seminiferous tubules.
D. transport testosterone across cell walls.
E. exert negative feedback on the production of testosterone by the Leydig cells.
C
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The kidneys play a major role in the regulation of which of the following? select all that apply.
a) electrolytes b) cholesterol levels c) acid-base balance d) body temperature
The presence of _______ proteins makes it possible for our immune system to differentiate between our cells and those that are foreign.
A. antigenic determinant B. MHC C. hapten D. antibody
A protein that is converted to an active enzyme is a
A. codon. B. proenzyme. C. gene. D. pre-mRNA. E. ribosomal RNA (rRNA).
What is a sesamoid bone?
A) A bone that forms within some tendons in response to stress B) A bone that forms in the cranium in response to trauma C) A bone made of dense regular connective tissue D) A bone made of hyaline cartilage E) A bone growing within some cartilages in response to pressure