The largest possible amount of a substance that can be reabsorbed or secreted across a kidney tubule wall in a given duration of time is known as the
A. transport maximum.
B. renal threshold.
C. renal clearance exponent.
D. glomerular filtration rate.
E. net filtration pressure.
Answer: A
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Which of the following statements regarding the diffusion of a nonpolar solute X across a cell membrane is correct?
A. At equilibrium, the net flux of X across the cell membrane is zero. B. Solute X will reach equilibrium, but the concentration will be much higher on the inside of the cell because of the smaller volume. C. Solute X will be unable to reach equilibrium because it is nonpolar. D. At equilibrium, X will cease moving across the cell membrane. E. At equilibrium, movement of X across the membrane will be much faster in one direction than in the other.
Which of the following does NOT influence the rate of diffusion of a chemical across a plasma membrane?
a) concentration gradient of the chemical across the membrane b) mass of the diffusing chemical c) distance that the chemical has to diffuse d) amount of ATP available e) temperature
The removal of the reproductive organs is called __________
Fill in the blank(s) with correct word
Cells synthesizing large quantities of proteins would have numerous nucleoli.
a. true b. false