In your osmosis lab experiment, what material will be used to simulate the plasma membrane of a cell?
A) A paper towel
B) Onion skin
C) A model of the cell
D) Dialysis tubing
Answer: D
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The zygomatic bone is an example of a(n)
A. long bone. B. irregular bone. C. flat bone. D. short bone.
An action potential is triggered if
A) EPSPs overpower IPSPs. B) the membrane hyperpolarizes. C) IPSPs overpower EPSPs. D) chloride channels open.
Compare arteriosclerosis with atherosclerosis
A) Arteriosclerosis is any thickening and toughening of arterial walls; atherosclerosis is a type of arteriosclerosis characterized by changes in the endothelial lining and the formation of fatty deposits (plaque) in the tunica media. B) Arteriosclerosis is a type of atherosclerosis characterized by changes in the endothelial lining and the formation of fatty deposits (plaque) in the tunica media. Atherosclerosis is any thickening and toughening of arterial walls. C) Arteriosclerosis is a blood clot that narrows the passageways in coronary arteries and reduces blood flow. Atherosclerosis is a plaque that narrows the passageways in coronary arteries and reduces blood flow. D) Arteriosclerosis is a partial blockage of coronary circulation usually caused by atherosclerosis. Atherosclerosis is characterized by changes in the endothelial lining and the formation of fatty deposits (plaque) in the tunica media. E) Arteriosclerosis is a plaque that narrows the passageways in coronary arteries and reduces blood flow. Atherosclerosis is a blood clot that narrows the passageways in coronary arteries and reduces blood flow.
Which of the choices below is not a method by which the cells of the renal tubules can raise blood pH?
A) by secreting hydrogen ions into the filtrate B) by reabsorbing filtered bicarbonate ions C) by producing new bicarbonate ions D) by secreting sodium ions