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- 1. Multiple ChoiceThe difference in the concentration of a substance from one location to another is called a/andiffusionosmosisconcentration gradientpassive transport
- 2. Multiple ChoiceA molecule that diffuses down a concentration gradient goes from an area of ______ concentration into an area of ______ concentration.high, lowlow, highpassive, activeactive, passive
- 3. Multiple ChoicePassive transport requires noconcentration gradientsosmosismotionenergy
- 4. Multiple ChoiceThis example of passive transport is the diffusion of water.osmosisconcentration gradientisotonicfacilitated diffusion
- 5. Multiple ChoiceControlling what goes into or out of the cell without energy is calledactive transportendocytosispassive transportexocytosis
- 6. Multiple ChoiceThis example of passive transport gets energy from the natural motion of particlesosmosisconcentration gradientisotonicdiffusion
- 7. Multiple ChoiceThe higher the concentration of dissolved particles in a solution (solute), the _______ the concentration of water molecules in that solution.highergreaterlowersmaller
- 8. Multiple ChoiceThis solution has the highest concentration of particles.hypertonichypotonicisotonic
- 9. Multiple ChoiceThis solution has the highest concentration of water molecules.hypertonichypotonicisotonic
- 10. Multiple ChoiceThis solution has the equal concentrations of water molecules and particles.hypertonichypotonicisotonic
- 11. Multiple ChoiceIn facilitated diffusion, molecules moveDown a concentration gradientAgainst a concentration gradient
- 12. Multiple ChoiceA solution with a higher level of solutes than the solution is calledhypertonichypotonicisotonic
- 13. Multiple ChoiceThis is the simplest form of passive transport:osmosisdiffusionfacilitated diffusionendocytosis
- 14. Multiple ChoiceThis cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.vacuolenucleuscell membranecell wall
- 15. Multiple ChoiceControlling what goes into or out of the cell with the help of energy is calledactive transportendocytosispassive transportexocytosis
- 16. Multiple ChoiceThis brings fluids into a cell during active transport.pinococytosisphagocytosis
- 17. Multiple ChoiceThis brings solid objects into a cell during active transport.pinococytosisphagocytosis
- 18. Multiple ChoiceThis active process gets rid of wastes.endocytosisexocytosisosmosisdiffusion
- 19. Multiple ChoiceThe movement of molecules against a concentration gradientsimple diffusionfacilitated diffusionactive transportosmosis
- 20. Multiple ChoiceThe movement of molecules down a concentration gradient is all of the following except:simple diffusionfacilitated diffusionactive transport
- 21. Multiple ChoiceThe movement of molecules through selective membrane proteins happens in all of the following except:simple diffusionfacilitated diffusionactive transport
- 22. Multiple ChoiceMost active transport proteins use energy from the breakdown of:nucleuscell membraneATPmitochondria
- 23. Multiple ChoiceA cell may transport a substance in ______ if the substance is too large to cross the membrane.lysosomesribosomesvesiclescytoplasm
- 24. Multiple ChoiceThis uses energyendocytosisexocytosisboth
- 25. Multiple ChoiceThis takes substances into a cellendocytosisexocytosisboth
- 26. Multiple ChoiceThis releases substances outside a cellendocytosisexocytosisboth
- 27. Multiple ChoiceThis moves substances in vesiclesendocytosisexocytosisboth
- 28. Multiple ChoiceThis is a term that means "cell eating" and describes a type of endocytosisactive tranportpincocytosisphagocytosisexosytosis
- 29. Multiple ChoiceIn which solution will water move out of the cell resulting in the cell shriveling up?HypertonicIsotonicHypotonic
- 30. Multiple ChoiceIn which solution will water move into the cell resulting in the cell bursting?HypertonicIsotonicHypotonic
- 31. Multiple ChoiceIn which solution will water move into and out of the cell at the same rate?HypertonicIsotonicHypotonic
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