A) adrenal cortex $\rightarrow$ hypothalamus $\rightarrow$ anterior pituitary.
B) anterior pituitary $\rightarrow$ adrenal cortex $\rightarrow$ hypothalamus.
C) anterior pituitary $\rightarrow$ hypothalamus $\rightarrow$ adrenal cortex.
D) hypothalamus $\rightarrow$ adrenal cortex $\rightarrow$ anterior pituitary.
E) hypothalamus $\rightarrow$ anterior pituitary $\rightarrow$ adrenal cortex.

A) act through nonspecific receptors, whereas steroid hormones act through specific receptors.
B) are generally water-insoluble, whereas steroid hormones are water soluble.
C) are more stable than steroid hormones.
D) bind to cell surface receptors, whereas steroid hormones bind to nuclear receptors.
E) bind to their receptors with high affinity, whereas steroid hormones bind with low affinity.

A) a reservoir of P_i for mitochondria.
B) reservoir of high-energy of phosphate to replenish ATP.
C) reservoir of amino acids for protein synthesis.
D) an electron acceptor under anaerobic conditions.
E) None of the answers is correct.