Chapter 5

Cell TransportChapter 5In the passive transport of materials

A. cells must use energy when materials enter the cell.B. cells use energy when materials leave the cell.C. cells do not use energy in this process.D. cells may or may not use energy depending upon the material moved.Diffusion is the result of

A. addition of energy to a system B. random molecular motionC. changing environments in a cell D. equilibrium concentrations inside cellsThe fastest way to make soft carrots become firm and crisp is to put it in

95% solute concentration 100% solute concentration0.9 % solvent concentration100% solvent concentration50% solute concentrationA biologist dilutes blood cells by adding water on a glass slide. As he watches the cells under the microscope, the cells seem to enlarge and finally burst. This is because he

used distilled water used very salty water added the water too rapidly used dead cellsThe one that would NOT affect the rate of diffusion through a membrane is the

temperature size of the cell number of molecular collisions against the membranepressure concentration of diffusing substanceIf a freshwater plant like Elodea were placed in a highly concentrated salt solution, the cells would

A. take in more water B. lose turgor pressure C. increase turgor pressureD. undergo cytolysis E. show no changeThe shrinkage of a cell and its contents due to a loss of water is called

plasmolysis cytolysishomeostasisactive transportPermeability is the ability of a

substance to cause osmosis solution to move when placed in watermolecule to move up a tube membrane to allow substances to pass in or out of itThe mechanism by which CO2 is excreted from the cell is

active transportplasmolysiscytolysis passive transport osmosisThe engulfing process by which liquids enter cells is

diffusionosmosis plasmolysis turgor pinocytosisYou will die after a period of drinking only salt water because

salt is not a sufficient dietall your cells will swell up and burstyour tongue would swell and you couldnt swallowall your cells will eventually become dehydratedIn which cell is cytolysis most likely to occur?

5% solute5% solute5% solute15% solute2% solute0% soluteIn which cell is plasmolysis most likely to occur?

5% solute5% solute5% solute25% solute18% solute2% soluteWhich cell is in a hypertonic environment?

5% solute5% solute5% solute3% solute10% solute5% soluteA cell in an isotonic environment will

Have a net gain of waterHave no net gain of waterHave a net loss of waterWhat is a characteristic of a cell membrane?

It is present in both animal and plant cellsIt is also known as semipermeableIt is composed of celluloseAll of the aboveTwo of the aboveThe purpose of the contractile vacuole is to

Provide the organism with energyEngulf materialsRemove excess waterA contractile vacuole is an example of what?

Facilitated diffusion Active transportPlasmolysisCytolysisProteins that are embedded in the plasma membrane to help transport larger molecules into a cell are called

Diffusion moleculesCarrier moleculesPinocytosis moleculesPhagocytosis molecules During diffusion, molecules move from an area of ______ concentration to an area of ______ concentration

Higher, higherLower, lowerLower, higherHigher, lowerMovement of large molecules out of a cell is known as what?

EndocytosisExocytosisPinocytosisPhagocytosisThe dispersal of Kool-Aid throughout a pitcher of water is an example of

OsmosisActive transportDiffusion If you are testing for glucose, what should you use?

IodineSilver nitrateBTBBenedicts solutionWhat color will the Benedicts solution turn?

BlackWhiteOrange What can the rate of diffusion be affected by?

TemperatureConcentration gradientPressureTwo of the aboveAll of the aboveIf you are testing for salt, what should you use?

IodineSilver nitrateBTBBenedicts solution Which of the following enters a cell by active transport?

GlucoseWater Sodium ionsPotassium ions What kind of solution is the second red blood cell in?

HypertonicIsotonicHypotonic What kind of solution is the second red blood cell in?

HypertonicIsotonicHypotonic

This plant cell is undergoing

PlasmolysisCytolysisEquilibrium Which cell process occurred below?

ExocytosisEndocytosisPinocytosisBoth B and C