Steroid hormones differ from peptide hormones in that
a. the site of synthesis of steroids is distinct from their site of release.
b. the former are not stored, but instead are released upon synthesis.
c. the former are synthesized ubiquitously.
d. they don't have a specific receptor protein with which they interact.
e. none of these.
B
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Blood flow to the right side of the heart muscle decreases due to constriction of the ________, and decreased blood flow to the heart tissue can result in ________.
A. left coronary artery; mitral valve prolapse B. left coronary vein; myocardial infarction C. right coronary artery; ischemia D. right pulmonary artery; endocarditis
Which immunosuppressive drug is used orally, as an injectable, and as an ophthalmic ointment?
a. cyclophosphamide b. azathioprine c. cyclosporine d. monoclonal antibodies
The most important regulator of the amount of sodium in the body is the:
a. kidney b. small intestine c. large intestine d. skin
Plasma clearance is the
a. time required to filter blood in the glomerulus b. amount of a substance appearing in the urine in one minute c. amount of a substance that is filtered in one minute d. amount of a substance secreted in one minute e. volume of plasma cleared of a substance by the kidneys in one minute