Which of the following statements is true of a patient who is hyperventilating?
a. More carbonic acid is converted to CO2 and H2O
b. The kidneys secrete more HCO3- during compensation
c. The kidneys reabsorb more H+ during compensation
d. More carbonic acid is converted to HCO3- and H+
Answer: d. More carbonic acid is converted to HCO3- and H+
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Which of the following statements about the chloride shift is false?
A) It involves a movement of chloride ion into RBCs. B) It depends on the chloride-bicarbonate countertransport mechanism. C) It involves a movement of bicarbonate ions into the plasma. D) It is driven by a rise in PCO2. E) It causes RBCs to swell.
An important role of progesterone in the reproductive process is to _____.?
A) ?maintain the growth and thickening of the endometrium B) ?encourage the breakdown of the lining of the endometrium C) ?stimulate the rupture of the follicle D) ?stimulate the creation of the corpus luteum
Cell membranes are semipermeable
Indicate whether the statement is true or false
What neurotransmitter is released by the axon of a sympathetic preganglionic neuron to communicate with the sympathetic postganglionic neuron?
A) norepinephrine B) adrenalin C) epinephrine D) acetylcholine