McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test



1. Review the animation and answer the following questions.

Osmosis is the

A. net movement of water molecules across a membrane from an area of high water concentration to one of low concentration.
B. movement of water within a beaker.
C. the ability of water to aid in dissolving certain molecules.
D. net movement of water from an area of high solute concentration to one of low solute concentration.



2. What would happen if the membrane allowed the free movement of the sucrose molecules as well? A. Osmosis would still occur.
B. Osmosis would not occur.
C. The sucrose molecules would still stay on the right side of the membrane.
D. Eventually, all the water molecules would move to the right side of the membrane.



3. Solute and water concentration are inversely related. In other words, the higher the concentration of solute, the lower the concentration of water. Why? A. Water is essential for dissolving the solutes. The more solutes, the more water that is required.
B. Water and solutes repel each other.
C. The solute molecules take up space which could be filled with water molecules.
D. Water molecules are always very small compared to the size of the solute molecules. The smaller molecules will be pushed out by the larger ones.


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