For which of the following organelles are the structure and function correctly described?
A) Ribosomes—membranous vesicles containing digestive enzymes
B) Golgi apparatus—particles, composed of protein and RNA, which synthesize
proteins
C) Mitochondrion—nonmembranous structure that synthesizes proteins
D) Endoplasmic reticulum—a network of interconnected membranes forming sacs and
canals that packages protein molecules for secretion
D
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Which of the following statements about the regulation of the glomerular filtration rate (GFR) is FALSE?
Elevation of blood pressure increases the GFR. Renin is released when the GFR is low. Constriction of the afferent arteriole increases the GFR. Constriction of the efferent arterioles increases the GFR.
Which is a function of the placenta?
A) It stimulates fetal blood cell production. B) It produces hormones that keeps the pregnancy viable. C) It directs organogenesis. D) It is first immune organ of the fetus.
Sperm travels from the testes through what duct?
A. Ductus deferens B. Ejaculatory duct C. Epididymis D. Efferent ductules
What converts pepsinogen to pepsin?
A. Hydrochloric acid B. Intrinsic factor C. Gastric lipase D. Gastrin