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Chemistry LibreTexts

5.04 Week 5 Quiz

  • Page ID
    184240
  • cc_profilecc.exam.v0p1qmd_assessmenttypeExaminationqmd_scoretypePercentagecc_maxattempts1
    cc_profilecc.multiple_choice.v0p1Unlike passive transport, active transport requiresconcentration gradients.diffusion.energy from the cell.vesicles.3100cc_profilecc.multiple_choice.v0p1Which process uses proteins to move molecules against a concentration gradient?active transportpassive transportendocytosisphagocytosis5100cc_profilecc.multiple_choice.v0p1Cells use active transport proteins toobtain molecules they need.break down molecules.engulf large particles.detect the charge of molecules.9100cc_profilecc.multiple_choice.v0p1A membrane-bound sac used to transport substances into and out of cells is apump.macrophage.lysosome.vesicle.16100cc_profilecc.multiple_choice.v0p1Which process is used to release insulin from pancreatic cells into the bloodstream?exocytosisendocytosisactive transportpassive transport17100cc_profilecc.multiple_choice.v0p1Which model did scientists develop to describe the cell membrane?phospholipid modeldynamic modelfluid mosaic modeltransport model23100cc_profilecc.multiple_choice.v0p1Which word best describes the structure of the cell membrane?layeredrigidimpermeablenonpolar25100cc_profilecc.multiple_choice.v0p1What is a phospholipid composed of?a polar head and a nonpolar taila nonpolar head and a polar taila polar head and taila nonpolar head and tail29100cc_profilecc.multiple_choice.v0p1Which phrase best describes the property of selective permeability?some molecules passall ions passlarge molecules passall molecules pass33100cc_profilecc.multiple_choice.v0p1A ligand produces a response in a cell if it finds the right kind ofcarbohydrate.hormone.membrane.receptor.40100cc_profilecc.multiple_choice.v0p1Which phrase best describes passive transport?requires transport proteinsrequires no energy from the cellrequires an isotonic solutionrequires facilitation by enzymes42100cc_profilecc.multiple_choice.v0p1Water moves into a cell when the solution surrounding the cell ishypertonic.hypotonic.isotonic.concentrated.46100cc_profilecc.multiple_choice.v0p1What is the term for the diffusion of water across a semipermeable membrane?osmosisequilibriumtransportisotonic49100cc_profilecc.multiple_choice.v0p1The movement of molecules down a concentration gradient through transport proteins in the cell membrane is a type ofselective transport.osmosis.energy expenditure.facilitated diffusion.56100cc_profilecc.multiple_choice.v0p1The difference in the concentration of dissolved particles from one location to another is called aconcentration gradient.concentrated solution.saline solution.dynamic gradient.57100