A solution with pH 4 has ________ the H+ concentration of a solution with pH 8.
A. 2 times
B. 4 times
C. ½
D. 1/10,000
E. 10,000 times
Answer: E
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How would removal of calcium ions from a blood sample affect coagulation?
A) The coagulation pathway would be more sensitive to activation. B) Coagulation would be prevented. C) There would be no important effect because magnesium can substitute for calcium. D) Coagulation would occur only in Rh positive individuals. E) More blood cells would be produced.
In addition to oxygen, hemoglobin also transports
A. carbonic acid and bicarbonate ions. B. calcium and carbon dioxide. C. carbon dioxide and hydrogen ions. D. iron and albumin.
Physicians are interested in cardiac output because it provides a useful indication of __________.
a. ventricular efficiency over time b. the amount of blood ejected by each ventricle c. valvular malfunctions d. atrial efficiency in respect to time
Connective tissues proper (or general connective tissues) produce collagen fibers using cells known as:
A) adipocytes. B) mast cells. C) phagocytes. D) fibroblasts.