Erythropoiesis is stimulated by a hormone that is secreted by which of the following?
A. The bone marrow
B. The kidneys
C. The spleen
D. The thymus
E. The pituitary gland
Answer: B
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"Dominance" of the coronary arterial system is determined by the coronary artery that:
A) is larger. B) supplies the AV node. C) supplies the SA node. D) supplies the posterior interventricular artery (posterior descending artery). E) branches first from the aorta.
Atrial natriuretic peptide
A) stimulates the release of renin. B) increases the GFR and inhibits the release of renin. C) increases the GFR and stimulates the release of renin. D) increases the GFR. E) inhibits the release of renin.
Glycoproteins are protein molecules with molecules of glycogen attached to the amino acid side chains.
Answer the following statement true (T) or false (F)
Simple diffusion is best described as substances __________.
A)moving passively against a concentration gradient B)moving actively against a concentration gradient C)moving passively down a concentration gradient D)moving actively down a concentration gradient