What is the final product of the breakdown of the organic nonprotein moiety of hemoglobin?
A. Iron
B. Biliverdin
C. Heme
D. Globin
E. Bilirubin
Answer: E
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In a blood cell, water and carbon dioxide can combine in a reversible reaction to form carbonic acid. If the concentration of carbonic acid increases, which direction will the net reaction proceed in?
A. The reverse direction (toward more water and carbon dioxide accumulation) B. The forward direction (toward more carbonic acid accumulation) C. The net rate will be unaffected by an increase in carbonic acid concentration.
Which of the following is NOT correctly matched?
A. astigmatism: blurred vision due to an unequal curvature of the cornea or lens B. cataracts: cloudiness of the lens C. glaucoma: abnormally high intraocular pressure due to a buildup of aqueous humor from a blockage of the canal of Schlemm (scleral venous sinus) D. myopia: nearsightedness due to an abnormally long eyeball E. presbyopia: inability of the eyes to accommodate for distance vision due to a loss of elasticity in the lens
Which of the following blood vessels supplies blood to the diaphragm?
A. Gastric artery B. Inferior mesenteric artery C. Superior phrenic artery D. Axillary artery E. Intercostal artery
Match the vessel with the appropriate description.A. Supplies blood to the frontal lobes of the brainB. A circle of arteries at the base of the brainC. Supplies large portions of the lateral cerebral cortexD. Supplies the posterior portion of the cerebrumE. Formed by the bifurcation of the abdominal aortaMiddle cerebral artery
Fill in the blank(s) with the appropriate word(s).