The pulmonary artery carries blood away from the following structures?
a) aorta
b) right atrium
c) right ventricle
d) left atrium
e) left ventricle
Ans: c) right ventricle
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If you experimentally increase the concentration of K+ inside a cell while maintaining other ion concentrations as they were, what would happen to the cell's membrane potential?
A) The membrane potential would become more negative. B) The membrane potential would become less negative. C) The membrane potential would remain the same.
Which structures contain valves?
a. arteries and veins b. arteries and heart c. arteries, capillaries, and heart d. lymph capillaries, arteries, and heart e. lymph capillaries, veins, and heart
The main difference between facilitated transport and osmosis is that
a. facilitated transports the passive transport of water, while osmosis moves solute particles. b. osmosis is the diffusion of water while, facilitated transport moves solute particles. c. facilitated transport requires energy while osmosis does not. d. osmosis requires a transport protein while facilitated transport does not.
After a period of exercise, a person will breathe heavily for some time after the activity has ceased. What is happening during this time as the oxygen debt is being paid?
A) Lactic acid is being removed. B) Creatine phosphate is being regenerated. C) Glycogen stores are being regenerated. D) All of the above are true.