Cellrecognition,signaling,adhesion.Explain therole ofcarbohydratechains onglycoproteins.Alters R-groupcharges;disruptsactive site.Why doesenzymeactivitydecrease atextreme pH?Membranepotentialcollapses;swelling mayoccur.If the Na⁺/K⁺pump stops,predict effectson membranepotential.Diffusion = solutemovement;Osmosis = watermovement;Facilitated =protein-assisted.Comparediffusion,osmosis, andfacilitateddiffusion.Channelsform pores;carrierschangeshape.Explain thedifferencebetweenchannel andcarrier proteins.Adds closelypackednegativecharges →instability →energy release.Explain whyphosphorylationcauses a largefree energychangeEnzymesloweractivationenergy only.Explain whyenzymes donot changeΔG of areaction.Shape andchemicalcompatibility(R groups).Explain whythe activesite isspecific to itssubstrate.Proteins notmodified orproperlysorted.If the Golgiapparatus isnonfunctional,predict whathappens tosecreted proteins.Chargedparticlescannot crosshydrophobiccore.Why do ionsrequiretransportproteins tocrossmembranes?Denaturation;loss offunction.Predict enzymeactivity attemperaturesfar aboveoptimum.Microtubules =transport/spindle;Actin = movement;Intermediate =structural support.Comparemicrotubules, actinfilaments, andintermediatefilamentsstructurally andfunctionally.Reaction isexergonic butrequires enzymeto overcomeactivationbarrier.Interpret areaction graphshowing highactivationenergy andnegative ΔG.Plants: wall,chloroplasts,vacuole;Animals: nowall, lysosomescommon.Compare plantand animalcells in termsof structureand function.ATP hydrolysisreleasesenergy to driveendergonicreactions.Explain howATP drivescoupledreactions.Hydrophobiceffect drivestails inward,headsoutward.Explain why thephospholipidbilayer formsspontaneouslyin water.Autodigestionof cell.Predict whathappens iflysosomesruptureinside a cell.Passive = noATP, downgradient; Active= ATP, againstgradient.Compare passivevs activetransport in termsof energy anddirection ofmovement.Facilitatedrequiresprotein;simple doesnot.Explain howfacilitateddiffusion differsfrom simplediffusion.Prokaryotes lacknucleus/organelles;eukaryotescompartmentalized.Compareprokaryoticandeukaryotic cellorganization.Bondsstrained;unstableintermediatestate.Explain whythe transitionstate is highenergy.High ATPdemand(muscle oractivetransport cell).A cell containsmanymitochondria—predict itsenergy demandsand role.No; lackschloroplasts.Predictwhetherphotosynthesisoccurs in aroot cell.Cell shrinks(crenation).Predict whathappens to ananimal cellplaced in ahypertonicsolution.Cellrecognition,signaling,adhesion.Explain therole ofcarbohydratechains onglycoproteins.Alters R-groupcharges;disruptsactive site.Why doesenzymeactivitydecrease atextreme pH?Membranepotentialcollapses;swelling mayoccur.If the Na⁺/K⁺pump stops,predict effectson membranepotential.Diffusion = solutemovement;Osmosis = watermovement;Facilitated =protein-assisted.Comparediffusion,osmosis, andfacilitateddiffusion.Channelsform pores;carrierschangeshape.Explain thedifferencebetweenchannel andcarrier proteins.Adds closelypackednegativecharges →instability →energy release.Explain whyphosphorylationcauses a largefree energychangeEnzymesloweractivationenergy only.Explain whyenzymes donot changeΔG of areaction.Shape andchemicalcompatibility(R groups).Explain whythe activesite isspecific to itssubstrate.Proteins notmodified orproperlysorted.If the Golgiapparatus isnonfunctional,predict whathappens tosecreted proteins.Chargedparticlescannot crosshydrophobiccore.Why do ionsrequiretransportproteins tocrossmembranes?Denaturation;loss offunction.Predict enzymeactivity attemperaturesfar aboveoptimum.Microtubules =transport/spindle;Actin = movement;Intermediate =structural support.Comparemicrotubules, actinfilaments, andintermediatefilamentsstructurally andfunctionally.Reaction isexergonic butrequires enzymeto overcomeactivationbarrier.Interpret areaction graphshowing highactivationenergy andnegative ΔG.Plants: wall,chloroplasts,vacuole;Animals: nowall, lysosomescommon.Compare plantand animalcells in termsof structureand function.ATP hydrolysisreleasesenergy to driveendergonicreactions.Explain howATP drivescoupledreactions.Hydrophobiceffect drivestails inward,headsoutward.Explain why thephospholipidbilayer formsspontaneouslyin water.Autodigestionof cell.Predict whathappens iflysosomesruptureinside a cell.Passive = noATP, downgradient; Active= ATP, againstgradient.Compare passivevs activetransport in termsof energy anddirection ofmovement.Facilitatedrequiresprotein;simple doesnot.Explain howfacilitateddiffusion differsfrom simplediffusion.Prokaryotes lacknucleus/organelles;eukaryotescompartmentalized.Compareprokaryoticandeukaryotic cellorganization.Bondsstrained;unstableintermediatestate.Explain whythe transitionstate is highenergy.High ATPdemand(muscle oractivetransport cell).A cell containsmanymitochondria—predict itsenergy demandsand role.No; lackschloroplasts.Predictwhetherphotosynthesisoccurs in aroot cell.Cell shrinks(crenation).Predict whathappens to ananimal cellplaced in ahypertonicsolution.

Exam 2 Review - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. Explain the role of carbohydrate chains on glycoproteins.
    Cell recognition, signaling, adhesion.
  2. Why does enzyme activity decrease at extreme pH?
    Alters R-group charges; disrupts active site.
  3. If the Na⁺/K⁺ pump stops, predict effects on membrane potential.
    Membrane potential collapses; swelling may occur.
  4. Compare diffusion, osmosis, and facilitated diffusion.
    Diffusion = solute movement; Osmosis = water movement; Facilitated = protein-assisted.
  5. Explain the difference between channel and carrier proteins.
    Channels form pores; carriers change shape.
  6. Explain why phosphorylation causes a large free energy change
    Adds closely packed negative charges → instability → energy release.
  7. Explain why enzymes do not change ΔG of a reaction.
    Enzymes lower activation energy only.
  8. Explain why the active site is specific to its substrate.
    Shape and chemical compatibility (R groups).
  9. If the Golgi apparatus is nonfunctional, predict what happens to secreted proteins.
    Proteins not modified or properly sorted.
  10. Why do ions require transport proteins to cross membranes?
    Charged particles cannot cross hydrophobic core.
  11. Predict enzyme activity at temperatures far above optimum.
    Denaturation; loss of function.
  12. Compare microtubules, actin filaments, and intermediate filaments structurally and functionally.
    Microtubules = transport/spindle; Actin = movement; Intermediate = structural support.
  13. Interpret a reaction graph showing high activation energy and negative ΔG.
    Reaction is exergonic but requires enzyme to overcome activation barrier.
  14. Compare plant and animal cells in terms of structure and function.
    Plants: wall, chloroplasts, vacuole; Animals: no wall, lysosomes common.
  15. Explain how ATP drives coupled reactions.
    ATP hydrolysis releases energy to drive endergonic reactions.
  16. Explain why the phospholipid bilayer forms spontaneously in water.
    Hydrophobic effect drives tails inward, heads outward.
  17. Predict what happens if lysosomes rupture inside a cell.
    Autodigestion of cell.
  18. Compare passive vs active transport in terms of energy and direction of movement.
    Passive = no ATP, down gradient; Active = ATP, against gradient.
  19. Explain how facilitated diffusion differs from simple diffusion.
    Facilitated requires protein; simple does not.
  20. Compare prokaryotic and eukaryotic cell organization.
    Prokaryotes lack nucleus/organelles; eukaryotes compartmentalized.
  21. Explain why the transition state is high energy.
    Bonds strained; unstable intermediate state.
  22. A cell contains many mitochondria—predict its energy demands and role.
    High ATP demand (muscle or active transport cell).
  23. Predict whether photosynthesis occurs in a root cell.
    No; lacks chloroplasts.
  24. Predict what happens to an animal cell placed in a hypertonic solution.
    Cell shrinks (crenation).