Most of the CO2 in the blood is transported as ________.
A. bicarbonate ions
B. carbonic anhydrase
C. carbaminohemoglobin
D. dissolved CO2 in the plasma
Answer: A
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If an immediate hypersensitivity reaction is concentrated primarily within the bronchioles, what condition results?
a. hay fever b. asthma c. lung cancer d. bronchitis e. pulmonary edema
Action potentials are conducted more rapidly
A) in small-diameter axons than in large-diameter axons. B) in unmyelinated axons than in myelinated axons. C) along axons that have nodes of Ranvier. D) all of the above.
The ejection fraction for an individual whose stroke volume is 45 ml of blood would be ________. This would ________ meet the body's demand for blood flow.
A. 10%; inadequately B. 60%; adequately C. 40%; inadequately D. 75%; adequately
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "A" relative to the RBC?
A. crenated B. hypotonic solution C. isotonic solution D. hypertonic solution E. hemolyzed