If the concentration of glucose in the water outside of a cell is higher than the concentration inside,
A. glucose will leave the cell by osmosis.
B. water will enter the cell by osmosis.
C. water will leave the cell by osmosis.
D. glucose will enter the cell by osmosis.
Answer: C
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In general, as an artery's diameter decreases, there is a(n)
A. increase in both smooth muscle and elastic fibers. B. decrease in the amount of smooth muscle and an increase in the number of elastic fibers. C. decrease in both smooth muscle and elastic fibers. D. increase in the amount of smooth muscle and a decrease in the number of elastic fibers.
What part of the motor pathway inhibits inappropriate movements?
A) cerebellum B) basal nuclei C) occipital lobe D) primary motor cortex
Cortisone and cortisol are types of ________ produced by the middle cortical layer of the adrenal gland
A) mineralocorticoids B) glucocorticoids C) sex hormones D) catecholamines
Compartments A and B are separated by a membrane that is permeable to K+ but not to Na+ or Cl-. At time zero, a solution of KCl is poured into compartment A and an equally concentrated solution of NaCl is poured into compartment B
Which would be true once equilibrium is reached? A. The concentration of Na+ in A will be higher than it was at time zero. B. Diffusion of K+ from A to B will be greater than the diffusion of K+ from B to A. C. There will be a potential difference across the membrane, with side B negative relative to side A. D. The electrical potential difference and diffusion potential due to the concentration gradient for K+ will be equal in magnitude and opposite in direction. E. The concentration of Cl- will be higher in B than it was at time zero.