F Handout 01 - Chapters 1-5 - with answers

Aundergoplasmolysis bbecomeflaccid cburst

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Unformatted text preview: C) occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated D) proceeds until equilibrium is reached 88) Osmosis can be defined as ______. A) the diffusion of water B) the diffusion of nonpolar molecules C) active transport D) the diffusion of a solute 89) When two solutions that differ in solute concentration are placed on either side of a selectively permeable membrane, and osmosis is allowed to take place, the water will ______. A) exhibit a net movement to the side with lower water concentration B) exhibit a net movement to the side with higher water concentration C) exhibit a net movement to the side with lower solute concentration D) exhibit an equal movement in both directions acrossthe membrane 7 90) A cell that neither gains nor loses water when it is immersed in a solution is ______. A) isotonic to its environment B) hypertonic to its environment C) hypotonic to its environment D) metabolically inactive 91) Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles tells you that the environment ______. A) is isotonic to the protozoan B) is hypotonic to the protozoan C) is hypertonic to the protozoan D) contains a higher concentration of solutes than the protozoan 92) If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. What accounts for this difference? A) expulsion of water by the plant cell's central vacuole B) the relative impermeability of the plant cell membrane to water C) the relative impermeability of the plant cell wall to...
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