Which of the following structures marks the beginning of a nephron?
A) nephron loop
B) distal convoluted tubule
C) proximal convoluted tubule
D) glomerular capsule (also known as Bowman's capsule)
D
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Which statement correctly describes the term left atrioventricular valve?
A) Its cusps open into the left atrium. B) Its cusps open into the superior vena cava. C) Its cusps open into the aorta. D) Its cusps open into the left ventricle. E) Its cusps open into the pulmonary trunk.
During the citric acid cycle, an acetyl CoA molecule produced in the intermediate stage combines with a molecule of
A. oxaloacetic acid. B. pyruvate. C. citrate. D. succinate.
The insertion of a muscle
a. is only associated with smooth muscle b. contains muscle spindles c. is the movable end of attachment. d. source of development in the fetus. e. serves the same function as the origin
In comparing simple diffusion to facilitated diffusion, you note that ________
A) both require ATP B) both require a specific carrier or protein channel C) both can move substances up, as well as down, a concentration gradient D) both require a concentration gradient