4 Written Questions

1. a difference in the concentration (amount of a particular substance) of a substance across a distance
2. lie on side of membrane help with chemical reactions and are not embedded in it
3. in protozan, an organelle that accumulates water and then releases it periodically to maintain osmitic pressure
4. describes a solution whose solute concentration

4 Multiple Choice Questions

1. embedded in the membrane and help transport molecules in or out of the cell
   1. Hypertonic
   2. Peripheral Proteins
   3. Integral Protein
   4. Cytolysis
2. describes a solution whose solute concentration is lower than the solute concentration inside a cell
   1. Cytolysis
   2. Hypotonic
   3. Isotonic
   4. Hypertonic
3. the contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis
   1. Plasmolysis
   2. Cytolysis
   3. Osmosis
   4. Isotonic
4. the movement of particles from regions of higher density to regions of lower density
   1. Isotonic
   2. Cytolysis
   3. Osmosis
   4. Diffusion

4 True/False Questions

1. Cytolysis → the contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis

   True        False

2. Osmosis → the diffusion of water or another solvent from a more dilute solution to a more concentrated solution through a membrane that is permeable to the solvent

   True        False

3. Turgor Pressure → the pressure that is exerted on the inside of cell walls that is caused by the movement of water into the cell

   True        False

4. Isotonic → a solution whose concentration is equal to the solute concentration inside of a cell

   True        False