MultipleChoice
Identify thechoicethatbestcompletesthestatementor answersthequestion.
P , P,
P , 1. Whichstatement regardingthesodium–potassiumpumpiscorrect?
i.z P, P
,
1. Thecell’splasmamembraneismoresolubletosodiumionsthanpotassiumions.
P
, P, P
, P, P
, P
, P,
2. Theconcentrationofsodiumionsshouldbehigherinsidethecellcompartment.
P, P, P
, P, P
,
3. Theconcentrationofpotassium ionsshouldbehigheroutsidethecell P
, P
, P, P
,
compartment.
P,
4. Theactivetransportinvolvespumping outthree sodium ionsandpumpingintwo iP, P, P, P
, P
,
potassiumions.
P, P,
2. Intheabsenceofoxygen,whichcellularfunctioncreatesthesameamountofenergyas is
P
, P
, P, P, P, P
, P
, P
, P
, i P ,
created in the presence of oxygen?
P, P, P, P, P, P,
1. Dissipationofpyruvicacid .zi
2. Initiationofthe citricacidcycle P, P
,
3. Activationofacetyl-coenzymeA
4. Creationofacidosisvialactic acid P
, P,
3. Howmanyadenosinetriphosphates(ATPs)areproducedinaerobicenergymetabolism? .zi
1. 2
2. 3
3. 34
4. 53
4. Whichcellorganellesdifferintheirnumberaccordingtothecell’senergyneeds?
P
, P
, P
, P
, P
,
1. Ribosomes
2. Mitochondria
, 3. Ribonucleic acids .zi
4. Deoxyribonucleic acids P ,
5. Whichoptionbest supports the reasonmoreenergyisproducedwhenapersonisexercising?
P , i P, i P, P, P, P
, P
, P
, P
, P
,
1. Exercisecausesanincreasein thesynthesis ofprotein. P, P,
2. Thereisanincreaseintheproductionofpyruvicacidinthecells. P
, P
, P
, P
, P
, P
, P
, P,
3. Theconversionofpyruvicacidtolactic acidisincreasedbyexercise. P
, P, P
, i P, P
, P
, P
,
4. Musclecells havemoremitochondria tomeet energydemands. i P , P
, P, i P, P
,
6. When does ribosomalproteinsynthesiscease?
P , .zi i.z P, P
,
1. Duringendoplasmicreticulumstress
2. Duringthesynthesisofadenosinetriphosphate(ATP)
3. Duringaseverehypoxicstate
4. Duringtheprocessing ofprohormone P,
7. P , Whichcellularorganellesareresponsibleforpropellingmucusandinhaleddebrisoutofthelungs?
P , P
, P
, P
, P
, P
, P
, P
, P
,
1. Cilia
2. Microfilaments
3. Secretoryvesicles
4. Endoplasmicreticula
8. P , P , Whicharethekeyproteinsin thecontractileunits ofthemusclecells? P
, P, P, P
,
1. Actinandmyosin
2. Prohormoneandtubulin
3. Tubulinandactin P
,
4. Myosinandprohormone P
,
9. WhichdeficiencycausesTay–Sachsdisease? .zi
1. Proteasome
2. Peroxisome
3. Macrophage
4. Lysosomal enzymes P,
P , 10. P , P , Whichisacharacteristic ofadrenoleukodystrophy?
P, i P,
1. Accumulationofganglioside
2. Cessationofribosomalproteinsynthesis
3. Accelerationofcellularproteasomeactivity
4. Accumulationoflong-chainfattyacids inthenervoussystem i.z
P , 11. Whichstatementregardingendoplasmicreticulum(ER)stressiscorrect?
P , .zi
1. DuringERstress,proteinsarerapidlydegraded.
2. DuringERstress,lipids cannot traveltotheirproperintracellularlocations. i P, i.z P, P
,
3. DuringERstress,long-chainfattyacidsaccumulateinthe nervoussystem. P ,
4. DuringERstress,nondegradedsubstancesaccumulateinthecells..zi
,12. Aclient isdiagnosedwithtype1diabetesmellitus.Atacellularlevel,whichfunctionis likelyto be
P, P
, P
, P
, P
, P
, P
, P
, P
, i P, P,
involved?
P,
1. Inabilityofribosomestoproduceaspecifictypeofprotein
P
, P
, P
, P
, P
,
2. Incorrect processingofaproteinbytheGolgiapparatus
i P, P
, P, P
, P
,
3. Stagnationofapreviouslydynamicactioninmicrotubules P
, P
, P
, P
,
4. Obstructionofthesmoothendoplasmicreticulum P
, P
, P
,
13. A newborn patient exhibits characteristics of severe physical deformities. Which cellular
P, P, P, P, P, P, P, P, P, P,
componentis examinedtodeterminethecauseandprobability of thediseasebeing genetically
P, P, P, P, P,
transferred?
P,
1. TransferRNA
2. RibosomalRNA
3. Doublehelix ofDNA P,
4. Mitochondrial DNA P,
14. Ahiker experiencesmusclepainandacidosiswhileascendingamountainduringa long,steep
P, P
, P
, P
, P
, P, P,
climb. Which is the reason for these manifestations?
P, P, P, P, P, P, P, P,
1. Cellularhypoxia
2. Autolysis
3. Heterolysis
4. Cellularedema
, 15. WhichfactorprovidesDNAtheuniquemolecularabilitytoreplicate?
P
, P
, P
, P
, P
, P
, P
, P
, P
,
1. Thepairingofnitrogenousbases P
, P
,
2. Thepresenceofpyrimidinebases P
, P
,
3. Thepresenceofnucleotides P
, P
,
4. Thenitrogenousbaseandphosphatebond P
,
16. Howmanynitrogenousbasescomposeasinglecodon?
P
, P
, P
, P
, P
, P
, P
,
1. 2
2. 3
3. 4
4. 5
17. WhichcomponentsformthestructureofDNA?
P
, P
, P
, P
, P
, P
,
1. Nucleotides
2. Aminoacids
3. Fattyacids P
,
4. Phosphates
18. Whichfactor is essentialin orderfor proteinsynthesis tooccur?
P, P, P, P
, P, P
, P, P, P, P
,
1. Free-standingribosomeswithinthe cell .zi P,
2. ProteinblueprintfromthecelloftheDNA P, P
, P
, P
,
3. Specific information fromthenucleusofthecell
i.z P ,
4. TransferRNA tomovetheproteinout of thecell i.z P, P,
19. Tetracyclineantibioticisprescribedforanadult client withchlamydiainfection.Whichisthe .zi .z .z P,
mechanism of action of the drug?
P, P, P, P, P, P,
1. Itpreventsthereplicationofbacteria.
2. Italterstheconfigurationofbacterialcytoplasm. .zi
3. Itinterfereswiththefunctionofbacterialribosomes. P, P
,
4. Itinhibitsthefunctions ofbacterialmitochondria.
,
P P,
20. Wheredoestheconversionofaprohormoneintoahormone take place?
P
, P
, P, i P,
1. Intheribosomes
P
, P
,
2. IntheGolgiapparatus
P
, P
,
3. Inthesecretorygranules
4. Intheendoplasmic reticulum
P
, P,
21. Whichisthecell’s“mastermind”?
P
, P
, P
,
1. Nucleus
2. Ribosome
3. Golgiapparatus
4. Endoplasmicreticulum