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- 1. Multiple ChoiceThe cell membrane is selectively permeable, which means...All materials can enter and leave the cellCertain things can enter while others cannotThe cell manually sorts through all materialsOnly certain cells can interact with the cell.
- 2. Multiple ChoiceHow many layers is the lipid bilayer?1234
- 3. Multiple Choice"Water Fearing"HydrophobicHydrophilicHydroelectricHydroloric
- 4. Multiple Choice"Water Loving"HydrophobicHydrophilicHydroelectricHydroloric
- 5. Multiple Choice
What is the function of the cell membrane?It regulates which materials enter and leave the cell.It contains the genetic information for the cell.It manufactures proteins for the cell.It generates chemical energy for the cell. - 6. Multiple ChoiceWhat does the "fluid mosaic model" mean about the cell membrane?It can dissolve into fluid.The cell is mostly made of mosaic molecules.It looks like a flexible pattern.Somebody else should name these things.
- 7. Multiple ChoiceThe cell membrane is selectively permeable, which means...All materials can enter and leave the cellCertain things can enter while others cannotThe cell manually sorts through all materialsOnly certain cells can interact with the cell.
- 8. Multiple ChoiceMost of the cell membrane is made of...LipidsCarbsProteinsNucleic acids
- 9. Multiple ChoicePhospholipid tails are...NonpolarPolar
- 10. Multiple ChoicePhospholipid heads are...PolarNonpolar
- 11. Multiple ChoiceWhen looking at the cell membrane, where are the lipid heads located?Floating between bilayer levelsOuter part of the bilayerInner part of the bilayerLocated at different parts throughout the bilayer
- 12. Multiple ChoiceWhich of the following is responsible for getting complex molecules across the cell membrane?LipidsCarbsProteinsNucleic Acids
- 13. Multiple ChoiceDiffusion is the movement ofwater from low to high concentrationparticles from low to high concentrationwater from high to low concentrationparticles from high to lowconcentration
- 14. Multiple ChoiceWhich of the following terms means the movement of water from high concentration to low concentrationdiffusionprokaryotesosmosisconcentration
- 15. Multiple ChoiceWhich transport does not require energy?PassiveActive
- 16. Multiple ChoiceWhich is true about active transport?It requires energyit does not require energyIt moves substances down the concentration gradientit moves material from high to low concentration
- 17. Multiple ChoiceWhich of these is a function of proteins embedded in the membrane?Receive SignalsTransport Nutrients and WasteManufacture LipidsA and B are correct
- 18. Multiple ChoiceCell has the same concentration of water inside & outside the cellisotonichypertonichypotonicosmosis
- 19. Multiple ChoiceMovement of molecules from high concentration to low concentration without the use of energy across a protein channeldiffusionosmosisfacilitated diffusionactive transport
- 20. Multiple ChoiceA white blood cell engulfs a bacterium, taking it in and then destroying it. What type of movement has occurred?endocytosisosmosisfacilitated diffusionequilibrium
- 21. Multiple ChoiceIn active transport, carrier proteins…Move substances across the cell membrane without the use of ATPMove from low to high concentration by diffusionMove small molecules through the cell membrane by osmosisMove substances from a low concentration to a high concentration through the use of energy
- 22. Multiple ChoiceSpecial proteins help move particles, but NO energy is needed. This is..facilitated diffusionexocytosisactive transportequilibrium
- 23. Multiple ChoiceWhich of the following is a function of the cell membrane?breaks down lipids, carbohydrates, and proteins from foodsstores water, salt, proteins, and carbohydrateskeeps the cell wall in placeregulates the movement of materials into and out of the cell
- 24. Multiple ChoiceWhich of the following structures serves as the cell’s boundary from its environment?mitochondrioncell membranechloroplastchannel protein
- 25. Multiple ChoiceThe cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?carbohydrateslipidsbilipidsproteins
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