If pure water and a solution containing a nonpenetrating solute are separated by a membrane that is permeable only to water, what would occur?
A. Water will diffuse by osmosis until the water concentrations in the two compartments become equal.
B. Water will diffuse by osmosis until all of the water is on the same side as the solute.
C. Water will diffuse by osmosis toward the side with the solute, until stopped by opposing hydrostatic pressure.
D. No movement will occur between the compartments.
E. Water will diffuse by osmosis away from the side with the solute, until stopped by hydrostatic pressure.
C
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When compared to extracellular fluid, intracellular fluid contains
A. more potassium and more negatively charged proteins. B. more potassium but fewer negatively charged proteins. C. less potassium but more negatively charged proteins. D. less potassium and less negatively charged proteins.
The synapse of the olfactory nerves with the mitral cells is called a ________.
Fill in the blank(s) with the appropriate word(s).
The thin sheet of lubricant that is secreted between serous membrane layers is referred to as ________.
Fill in the blank(s) with the appropriate word(s).
The respiratory surfaces of the nasal cavity are cleared by mucus produced in part by which of the following?
A) external nares B) paranasal sinuses C) soft palate D) nasal vestibule E) nasopharynx