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- 1. Multiple Choice
Which way would the purple molecules move through the semi-permeable membrane?From the A side to the B-sideFrom the B side to the A sidenone of the purple molecules would movethey would move equally back and forth in a state of dynamic equilibrium - 2. Multiple ChoiceThe picture is an example of...active tranportpassive transportdiffusionosmosis
- 3. Multiple ChoiceThe cell membrane is solid and rigid.truefalse
- 4. Multiple ChoiceWhich of the following is responsible for getting large or charged (polar) molecules across the cell membrane?EBCD
- 5. Multiple ChoiceControlling what goes into or out of the cell with the help of energy is calledactive transportendocytosispassive transportexocytosis
- 6. Multiple ChoiceHydrophobic region of the cell membrane?EBCA
- 7. Multiple ChoiceWhich form of active transport is being shown? (Inside of the cell is tan colored)Facilitated DiffusionExocytosisEndocytosisReceptor-mediated endocytosis
- 8. Multiple ChoiceA saltwater snail is placed in freshwater. What happens to its cells?They shrinkThey swellNothing happens
- 9. Multiple ChoiceWhich statement about cholesterol molecules is true?They help hold a membrane together.They alter the fluidity of the membrane.They attach to carbohydrates.They disrupt membrane function.
- 10. Multiple ChoiceWhich type of membrane protein would likely be most easily removed in a laboratory experiment?Integral membrane proteinsChannel proteinsPeripheral membrane proteinsTransmembrane proteins
- 11. Multiple ChoiceA protein that forms an ion channel through a membrane is most likelya peripheral membrane proteina phospholipidan enzyme.a transmembrane protein
- 12. Multiple ChoiceWhich of the following functions as a recognition site for interactions between cells?PhospholipidsCholesterolFatty acidsGlycolipids
- 13. Multiple ChoiceWhich statement about diffusion is false?Diffusion does not require ATPSimple diffusion depends upon specific carrier proteinsIn diffusion, molecules move from areas of greater concentration to areas of lesser concentrationDiffusion continues until the molecular concentrations are in equilibrium
- 14. Multiple ChoiceIf a hospital patient is mistakenly given an IV of pure water instead of a saline solution that is isotonic to blood, the patient’s red blood cells willshrink and collapserelease water to the plasma along its concentration gradientabsorb water from the plasma and eventually bursttransport equal amounts of water across the cell membrane in both directions
- 15. Multiple ChoiceThe difference between osmosis and diffusion is thatdiffusion is passive transport, whereas osmosis is active transportonly in diffusion do molecules move from areas of high concentration to areas of low concentrationosmosis is the opposite of diffusion and only involves the movement of waterosmosis refers specifically to the movement of water, whereas diffusion refers to the movement of any type of molecules
- 16. Multiple ChoiceWhich of the following is the driving force for facilitated diffusion?Concentration gradientATP hydrolysisADP hydrolysisPhosphorylation
- 17. Multiple ChoiceWhich of the following is the driving force for simple diffusion?Concentration gradientATP hydrolysisADP hydrolysisPhosphorylation
- 18. Multiple ChoiceIn a hypothetical study, cells are placed in a solution of glucose in which the concentration of glucose is gradually increased. At first, the rate at which glucose enters the cells is found to increase as the concentration of the glucose solution is increased. But when the glucose concentration of the solution is increased above 10 M, the rate no longer increases. Which of the following is the likely mechanism for glucose transport into these cells?Facilitated diffusion via a carrier proteinFacilitated diffusion via a channel proteinPinocytosisTertiary active transport
- 19. Multiple ChoiceWhich structure is common to plant and animal cells?central vacuolechloroplastwall made of cellulosemitochondrion
- 20. Multiple ChoiceLarge numbers of ribosomes are present in cells that specialize in producing which of the following molecules?glycogencelluloseproteinslipids
- 21. Multiple ChoiceThe movement of potassium into an animal cell requiresan energy source such as ATPlow cellular concentrations of sodiuma cotransport proteinhigh cellular concentrations of potassium
- 22. Multiple ChoiceWhich of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?CO2an amino acidstarchglucose
- 23. Multiple ChoiceWhen a plant cell, such as one from a tulip stem, is submerged in a very hypotonic solution, what is likely to occur?The cell membrane will lyse.The cell will burst.The cell will become turgid.Plasmolysis will shrink the interior.
- 24. Multiple ChoiceWhich term most precisely describes the cellular process of breaking down large molecules into smaller ones?anabolismcatabolismmetabolismdehydration
- 25. Multiple ChoiceWhich statement is correct about diffusion?It's very rapid over long distances.It's a passive process which molecules move from a region of higher to lower concentration.It requires an energy expenditure by the cell.It's an active process where molecules move from a region of lower to higher concentration.
- 26. Multiple ChoiceWhich of the following is major cause of the size limits for certain types of cells?evolutionary progression in cell size; more primitive cells have smaller sizes.the need for sufficient surface area to support the cell's metabolic needs.limitation on the strength and integrity of the plasma membrane as cell size increasesthe difference in plasma membranes between prokaryotes and eukaryotes
- 27. Multiple ChoiceThe lower the pH, the greater the concentration of :OH-H+
- 28. Multiple ChoiceThe energy needed to start a reactionactivation energyadhesion energychemical energycohesion energy
- 29. Multiple ChoiceWhich property makes water molecules stick to other water molecules?adhesioncohesioncapillary actionpolarity
- 30. Multiple ChoiceChanges in pH and temperature can damage an enzymes active site. What is this called?reusablecatalystspecificdenature
- 31. Multiple ChoiceWhat 3 letters do enzymes typically end in?-ose-ase-ese-tic
- 32. Multiple ChoiceThe monomer, building block, of proteinsAmino AcidFatty AcidNucleotidemonosaccharide
- 33. Multiple ChoiceCombines with 3 fatty acid chains to make up a triglyceride; part of the monomer of lipidsAmino AcidFatty AcidGlycerolNucleotide
- 34. Multiple ChoiceThe monomer, building block, of DNA and RNA; made up of a sugar, phosphate, and nitrogenous baseAmino AcidFatty AcidNucleotideMonosaccharide
- 35. Multiple ChoiceThe process/reaction used to link compounds/monomers together. Releases water.DehydrationHydrolysisEnzomaticTetratonic
- 36. Multiple ChoiceThe process used to split polymers; this is done by adding waterDehydrationHydrolysisEnzomaticTetratonic
- 37. Multiple ChoiceWhich of the following is not a job of a proteinAct as hormones and enzymesDo much of the work in cells and transport materialsBuild tissues and musclesstore and transmit genetic information
- 38. Multiple ChoiceAll organic compounds contain the elementcarbonnitrogenphosphorussulfur
- 39. Multiple ChoiceWhich macromolecule is shown?lipidproteinnucleic acidcarbohydrate
- 40. Multiple ChoiceThe diagram shows a bond forming between two amino acids. What is the name of this reciprocation?Dehydration SynthesisHydrolysisPepysisOxidation
- 41. Multiple ChoiceIs this hydrocarbon saturated or unsaturated?saturatedunsaturated
- 42. Multiple ChoiceThe bond that joins amino acids are called:Peptide BondsEster BondsGlycosidic LinkagesPhosphodiester Bonds
- 43. Multiple ChoiceAmino acids all have the same general morphology except for the:Amino GroupCarboxyl Group'R' GroupCarbonyl Group
- 44. Multiple ChoiceWhat molecule is this?this is a monosaccharidethis is a polysaccharidethis is a proteinthis is a lipid
- 45. Multiple ChoiceWhy do lipids provide longer lasting energy than Carbohydrates?They have many more C-H bondsThey have fewer C-H bondsThey have more OxygenThey have less Oxygen
- 46. Multiple ChoiceAlpha helix and beta pleated sheets are part of what level of protein structure?primarysecondarytertiaryquaternary
- 47. Multiple ChoiceIf someone is lactose intolerant, they lack the enzyme _____.lipaselactoselactasemilk
- 48. Multiple ChoiceA solution with a pH of 8.6 would be...AcidBaseNeutralAcid and Base
- 49. Multiple ChoiceThe image is an example of aLipidPolysaccarideProteinLipid (polypeptide)
- 50. Multiple ChoiceWhich level of protein structure determines the function of a protein?primarysecondarytertiaryquaternary
- 51. Multiple ChoiceWhich of the following contains the highest water potential?ABCD
- 52. Multiple ChoiceIf a student was going to draw an arrow indicating the solution from the highest water potential to the lowest water potential, the arrow would be pointingfrom the left to the rightfrom the right to the left
- 53. Multiple ChoiceWhich of the following cells would have the highest surface area to volume ratio?123they are all the same
- 54. Multiple ChoiceAn organism lives in the Arctic waters. A researcher examines the cell membrane. Which of the following represents the membrane that would be found.ABCD
- 55. Multiple ChoiceIn the membrane section seen, which section would represent the non-polar section of a protein?ABCD
- 56. Multiple ChoiceResearchers inserted pieces of membrane with aquaporins into frog eggs and placed the eggs into a hypotonic solution. What did they observe?The aquaporins started to pump out waterThe eggs started to pump out Na+ to draw out waterThe eggs started to swell rapidly as water diffused insideThe aquaporins started to pump in water
- 57. Multiple ChoiceThe area where Na+ ions are actively transported would beABCD
- 58. Multiple ChoiceWhat area would have the lowest water potential?ABCD
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