HOSA - BIOTECHNOLOGY REVIEW QUESTIONS WITH CORRECT ANSWERS 2025

HOSA - BIOTECHNOLOGY REVIEW QUESTIONS
WITH CORRECT ANSWERS 2025
WhatAwouldAyouAconsultAfirstAinAtheAeventAofAaAChemicalASpill?A-ACORRECTAANSWERA-
Answer:ACommunicateAtoAcolleaguesAandAlaboratoryAdirectorA&AassessAspillsArisksAandApotentialAcleanAupA
procedure.

Explanation:ACriteriaAofAspillAriskA-
AdoesAnotAspreadArapidly,AdoesAnotAendangerApeopleAorApropertyAexceptAbyAdirectAcontact,AandAdoesAnotA

endangerAtheAenvironment.



HowAmanyAgramsAofAKCIAwouldAbeAusedAtoAmakeA30mLAofAaA2%AKCIAsolution?A-ACORRECTAANSWERA-
Answer:A91.4Agrams

Explanation:A

*AC=mol/volume

1)A2.45MA=Amol0.5L

2)A2.45M⋅0.5LA=Amol

3)AmolA=A1.225

*ConvertAno.AofAmolesAtoAgramsAusingAtheAatomicAmassAofAKA+ACl

4)A1.225mol⋅(39.1+35.5)gmol

5)A1.225mol⋅74.6gmol

6)A=1.225⋅74.6g

7)A=A91.4g



WeightAboatsA&AMechanicalABalancesA-ACORRECTAANSWERA-
WeightAboatsAdefinition:AWeighingAboatsAareAopenAcontainersAthatAareAusedAtoAweightAgranulated,Aliquid,
AorAsolidAsamples(small,Awhite,AusedAinAChemistryABeaniumAlab)




MechanicalABalancesAdefinition:APrecise,Anon-
electronic,AanalogAlaboratoryAbalancesAforAweighingAandAcomparativeAweighingAofApowders,Asolids,AandAli
quids;AtypicallyAincludeAspring,AcounterAbalance,AandAarmAcomponentAdesigns.



RangeAofAvacuumAassistedApipette:A-ACORRECTAANSWERA-Answer:A0.1AµlAtoA10,0000Aµl.