Histotechnology-Processing Questions and Answers Updated 2026

Histotechnology-Processing
Questions and Answers Updated
2026
1.ATheApurposeAofAprocessingAis:A-
AAnswer✓AremoveAtheAwaterAfromAtheAtissueAtoAprepareAitAforAparaffinAinfiltrationAand
Aembedding


2.ATheAthreeAstepsAofAprocessingAare:A-AAnswer✓Adehydration,Aclearing,Ainfiltration


3.AListAfourAofAtheAfactorsAthatAaffectAtheAeffectivenessAofAtissueAprocessing:A-
AAnswer✓AsizeAofAtissue,Atemperature,Apenetrability,Aagitation


4.ADefineAviscosityAasAitArelatesAtoAtheAsizeAofAmoleculesAinAaAliquid:A-
AAnswer✓AaAlowAviscosityAwillApenetrateAquickerAdueAtoAmoleculesAbeingAsmaller


5.AListAfourAadvantagesAofAalcoholAasAaAdehydratingAfluid:A-
AAnswer✓AmiscibleAwithAwater,AactsArapidly,AmostAreagentsAareAsolubleAwithAit,AmoreAc
ostAeffective


6.AWhatAareAtwoAadvantagesAandAdisadvantagesAofAusingAacetoneAasAaAdehydratingAfluid?
A-AAnswer✓AAdvantages:ApenetratesArapidly,AlessAexpensive
Disadvantages:Aflammable,AshrinksAandAmakesAtissueAbrittle


7.AWhyAwasAdioxaneAdiscontinuedAasAaAdehydratingAfluidAinAtissueAprocessing?A-
AAnswer✓AhighlyAtoxic


8.ATwoApurposesAofAtheAclearingAstepAinAprocessingAisAto:A-
AAnswer✓AremovingAalcohol,ApreparingAtissueAforAinfiltration


9.ADefineAuniversalAsolvent:A-AAnswer✓AactsAasAdehydrateAandAclearingAagent


10.ATwoAuniversalAsolventsAare:A-AAnswer✓ATHFAandAbutanol

, 11.AWhyAareAuniversalAsolventsAnotArecommendedAforAcommonAusageAinAtissueAprocessing?
A-AAnswer✓AareAtooAtoxicAandAharshAonAbiopsy


12.AListAthreeAfactorsAthatAcouldAbeAusedAwhenAconsideringAwhichAprocessingAreagentsAtoAu
se:A-AAnswer✓AtissueAsizeAandAtype,Atoxicity,AandAcost


13.ATheApurposeAofAtheAinfiltrationAstepAofAprocessingAis:A-
AAnswer✓ApenetrateAtissueAwithAsupportAmediumAtoAprepareAforAembedding


14.ADefineAmiscible:A-AAnswer✓AableAtoAmixAorAcombine


15.AWhyAisAitAimportantAthatAclearingAagentsAareAmiscibleAwithAtheAinfiltrationAmedium?A-
AAnswer✓AparaffinAwon'tAinfiltrateAifAclearingAagentAisn'tAremoved


16.ATheAmajorAadvantageAtoAusingAvacuumAduringAinfiltrationAis:A-
AAnswer✓AhelpsApenetrationAandAspeedsAupAprocessing


17.AWhyAareAgradedAalcoholsAusedAinAtheAdehydrationAsteps,AinsteadAofAgoingAdirectlyAint
oAabsoluteAalcohol?A-AAnswer✓AifAtooAquick,AitAcanAdamageAtissueA(shrinkAandAharden)


18.ADuringAtheA'clearing'AprocessingAstep,AtheAtissuesAbecomeAmoreAorAlessA____________
________AbecauseAtheArefractiveAindexAofAtheAclearantAisAnearAthatAofAtheAtissue.A-
AAnswer✓Atransparent


1.AOneAindicatorAofAtheAprobableAspeedAofAremovalAofAtheAclearingAagentAfromAtissueAisAit
s:A-AAnswer✓AmolecularAsize



2.AXylene,AtolueneAandAbenzeneAbelongAtoAthisAchemicalAclass:A-AAnswer✓Ahydrocarbon


3.AIfAtheAclearingAagentAisAcloudyAafterAtissueAisAprocessed,AitAisAprobablyAcontaminatedA
with:A-AAnswer✓Awater