Most of a cell's DNA is located in its:
A) Golgi apparatus. B) nucleus. C) lysosomes. D) ribosomes.
Answer: B
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During the cardiac cycle, ventricular depolarization and repolarization both begin at the apex of the heart and progress superiorly.
Answer the following statement true (T) or false (F)
A drug that blocks the action of carbonic anhydrase in parietal cells would result in
A) a lower pH during gastric digestion. B) a higher pH during gastric digestion. C) decreased production of pepsinogen by chief cells. D) increased protein digestion in the stomach. E) decreased gastrin production.
The resting membrane is ____ more permeable to potassium than to sodium
a. 2x b. 5x c. 10-15x d. 25-30x e. 100x
All of the following are true of steroid hormones except that they
A) are produced by the adrenal medulla. B) are derived from cholesterol. C) are produced by reproductive glands. D) bind to receptors within the cell. E) are lipids.