For a neuron at rest, there is a higher concentration of ____ outside the cell than inside
a. Na+
b. K+
c. Ca2+
d. anions
e. ATP
ANSWER: a
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Cystic fibrosis is most often caused by the CFTR?F508 mutation. This mutation:
A. reduces the function of a chloride ion channel. B. increases ATP binding to chloride. C. is autosomal dominant. D. causes symptoms in carriers.
Manatees are mostly found in:
a. cold polar waters. b. Antarctica. c. tropical estuaries. d. temperate coastal areas. e. Eastern Pacific Ocean.
Select the best response to the question. ? ?You are caring for a patient who has recently returned home from a trip to Central America and is complaining of stomach cramps and diarrhea. What treatment do you anticipate will be prescribed for the patient?
A) intravenous fluids B) anti-viral agents C) antifungal medications D) antibiotics
An example of a properly functioning homeostatic control system is seen when _____
A) the core body temperature of a runner rises gradually from 37°C to 45°C B) the kidneys excrete salt into the urine when dietary salt levels rise C) a blood cell shrinks when placed in a solution of salt and water D) the blood pressure increases in response to an increase in blood volume