Chapter Review

uSING vOCABULARY

1. For each pair of terms, explain how the meanings of the terms differ.

a. diffusion and facilitated diffusion b. hypotonic and hypertonic c. plasmolysis and cytolysis d. pinocytosis and phagocytosis

2. Explain the relationship between plasmolysis and turgor pressure in plant cells.

3. Use the following terms in the same sentence: carrier protein, concentration gradient, facilitated diffusion, and passive transport.

4. Word Roots and Origins The prefix pino- means "to drink," phago- means "to eat," and cyto-means "cell." Using this information, explain why the words pinocytosis and phagocytosis are good names for the processes they describe.

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