TEST BANK FOR ESSENTIALS OF ORAL HISTOLOGY AND EMBRYOLOGY 5TH EDITION CHIEGO

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Test Bank
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Chapter01:Development and StructureofCellsandTissuesChiego:EssentialsofOral
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Histology and Embryology, 5th Edition v v v v v




MULTIPLECHOICE v




1. Mitochondriaproducewhich chemical forintracellular energy?v v v v v v




a. ADP
b. ATP
c. RNA
d. DNA
ANS: B
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Feedback
A Mitochondriagenerate energythroughATP, not ADP, production.
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B Correct. Mitochondria produce energyvia ATP.
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C Mitochondria generate energythrough ATP, not RNA, production.
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D MitochondriagenerateenergythroughATP,not DNA,production.
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vDIF: Recall REF: pp. 2-3 OBJ: 1 v v v v v




2. Eachtissueoriginates frommesoderm, EXCEPTone. Which isthe EXCEPTION?
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a. Bone
b. Liver
c. Blood
d. Muscle
ANS: B
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Feedback
A Bonetissuedevelops frommesodermalcells.
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B Correct. Liver tissue isproduced byendodermalcells.
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C Blood develops frommesodermalcells.
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D Muscletissuedevelopsfrommesodermalcells.
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vDIF: Recall REF: p. 6 v v v OBJ: 3 v




3. Whichchemical is called thesecond messenger?
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a. aDNA
b. mRNA
c. dGMP




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, OralHistologyand Embryology5th editionChiego
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d. cAMP
ANS: D
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Feedback
A cAMP is the second messenger; aDNA is not. v v v v v v v




B cAMP is the second messenger; mRNA is not. v v v v v v v




C cAMP isthe second messenger;dGMP is not.
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D Correct. cAMP transmits information to the intracellular organelles when
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activated by surface receptors on the plasma membrane.
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DIF: Recall REF: p. 3 v v v v OBJ: 3 v




4. Whichcellular component facilitatesproteinsynthesis?
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a. Ribosomes
b. Lysosomes
c. Mitochondria
d. Plasmalemma ANS: A v v




Feedback
A Correct. Ribosomessynthesizeprotein. v v v




B Lysosomes facilitatethebreakdownofintracellular andextracellularsubstances. v v v v v v v v




C Mitochondria generate energy. v v




D Theplasmalemmaprovidesaprotectivebarrierandregulatesthetransportof
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substances to and from the cell.
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5. Whichorganelle produces microtubules?
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a. Nucleus
b. Centriole
c. Golgiapparatus v




d. Endoplasmicreticulum ANS: B v v v




Feedback
A Centriolesgenerate microtubules;thenucleusdoes not. v v v v v v




B Correct. Centrioles produce microtubules. v v v




C Centrioles generate microtubules;the Golgiapparatus does not.v v v v v v v




D Centriolesgeneratemicrotubules;theendoplasmicreticulumdoesnot.
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vDIF: Recall REF: p. 3 v v v OBJ: 1 v




6. Whichphaseofthe cell cycle is characterized as the initialresting stage?
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a. Sphase
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b. G1phase v




c. G2phase v




d. Prophase ANS: B v v




Feedback
A TheS phase is characterized as the stageinwhich DNAsynthesis is complete.
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B Correct. The G1 phase is the initialresting stage.
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C TheG2 phase is characterized bypost-DNAduplication.
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D Prophaseischaracterizedbyfourspecificstructuralchanges.
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vDIF: Recall REF: p. 4 v v v OBJ: 1 v




7. Posttranslationalmodificationsto proteinsproducedbytheroughendoplasmicreticulum are v v v v v v v v v v




accomplished by . v




a. mitochondria
b. Golgiapparatus v




c. messengerRNA v




d. smoothendoplasmic reticulumANS: B v v v v




Feedback
A TheGolgiapparatusisresponsibleforposttranslationalalterations;mitochondria are
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not.
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B Correct.TheGolgiapparatusmakesalterationsto proteinsproduced bythe
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rough endoplasmic reticulum.
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C TheGolgiapparatusisresponsible forposttranslationalalterations;mRNAis not.
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D TheGolgiapparatusisresponsible forposttranslationalalterations;thesmooth
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endoplasmic reticulum is not.
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DIF: Recall REF: p. 2 v v v v OBJ: 1 v




8. The providesan idealenvironment forthe implantation and growthofthe embryo. v v v v v v v v v v v




a. ovary
b. uterinetube v




c. myometrium
d. endometriumANS:D v v




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