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- 1. Multiple ChoiceThis cellular structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells.vacuolenucleuscell membranecell wall
- 2. Multiple Choice
What type of transport is this?facilitated diffusionactive transportdiffusionosmosis - 3. Multiple ChoiceThe most important organelle in cell transport is the.....E.R.cytoplasmnucleuscell membrane
- 4. Multiple ChoiceWhat are two types of passive transport?endo and exocytosisin a minute and laterhydrophobic and hydrophillicosmosis and diffusion
- 5. Multiple ChoiceSpecial proteins help move particles, but NO energy is needed. This is..facilitated diffusionexocytosisactive transportequilibrium
- 6. Multiple ChoiceWhat is this image?cell membranemitochondriagolgi apparatusendoplasmic reticulum
- 7. Multiple ChoiceThe function of the plasma membrane is....to regulate what enters and leaves the cell.fight bacteria and viruses that enter the cell.provide rigid support and protection to the cell.make sure each cell can move
- 8. Multiple ChoiceWhat do the brown structures represent?PhospholipidsGlycoproteinsChannel ProteinsCyctoskeleton Filaments
- 9. Multiple ChoiceWhen something is 'water fearing' it is....HydrophobicHydrophilicHydroelectricHydrochloric
- 10. Multiple ChoiceWhen something is 'water loving' it is.....HydrophobicHydrophilicHydroelectricHydroloric
- 11. Multiple ChoiceIn which direction will these molecules diffuse?from right to leftfrom left to rightthey will not move at allthey will move in both directions equally
- 12. Multiple ChoiceThis process is known as ________ transport.passiveactiveproteintemporary
- 13. 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.
- 14. Multiple ChoiceThis is what a cell needs to transport particles by active transport?WaterTimeEnergyChannels
- 15. Multiple ChoiceATP is a form of energy needed for.....passive transportactive transportfacilitated transportprotein transport
- 16. Multiple ChoiceWhich part of this phospholipid is hydrophobic?fatty lipid tailsheadall of it is hydrophobicnone of it is hydrophobic
- 17. Multiple ChoiceAgainst the concentration gradient, from low to high, uses ATP; this decribes.....facilitated diffusionosmosisactive transportsimple diffusion
- 18. Multiple ChoiceThis is a picture of the......cell membranephospholipid bilayerplasma membraneall of these
- 19. Multiple ChoiceWhen looking at the cell membrane, where are the lipid tails located?Inner part of the bilayerOuter part of the bilayerAt the end of the bilayerGoes through each end of the bilayer
- 20. Multiple ChoiceOsmosis is the movement of _____ across a membrane.foodenergyoxygenwater
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