What is the colligative property of osmotic pressure?
a. The pressure exerted on biological membranes from the atmosphere
b. The pressure exerted on biological membranes from salinity differences outside the cells
c. The pressure exerted on biological membranes during temperature changes of water
d. The pressure exerted on biological membranes when surrounding waters phase change
ANS: B
Osmotic pressure rises with increasing salinity. This allows for the transmittance of water in and out of
cells. Information can be found in the section Seawater Consists of Water and Dissolved Solids.
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