High-Yield Practice Questions, Accurate Answers,
Clear Explanations, and Proven Strategies for
Maximum Score Improvement”
1. What=are=the=three=types=of=salivary=glands=and=where=are=the
y=located=in=the=mouth?=-=CORRECT=ANSWER--
=Parotid,=sublingual,=and=submandibular=glands=located=in=the
=roof=of=the=mouth,=cheeks,=and=under=the=jawbone,=respectiv
ely.
2. Which=of=the=following=substances=is=excreted=by=the=kidneys=
to=regulate=blood=pressure?=-=CORRECT=ANSWER--=Renin
3. What=is=the=chemical=formula=for=water?=-
= CORRECT=ANSWER--=H20
4. Which=of=the=following=units=is=used=to=indicate=length?=-
= CORRECT=ANSWER-M
5. researcher=collects=data=on=the=number=of=cars=passing=throug
h=a=busy=intersection=at=different=times=of=the=day=for=a=month.
=This=data=would=be=most=useful=to=analyze=which=of=the=follo
wing:=-=CORRECT=ANSWER--
=traffic=patterns=during=rush=hour
6. What=is=the=largest=organ=in=the=human=body=by=surface=area?
= = - CORRECT=ANSWER--=Skin
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,7. Which=of=the=following=describes=the=function=of=ligaments?=-
= CORRECT=ANSWER--=Ligaments=attach=two=bones
8. What=is=the=difference=between=innate=and=adaptive=immunit
y?=-=CORRECT=ANSWER--
=Innate=immunity=is=present=at=birth=while=adaptive=immunity=i
s=acquired=after=exposure=to=pathogens.
9. Which=of=the=following=is=responsible=for=carrying=amino=acid
s=to=ribosomes=during=protein=synthesis?=-
=CORRECT=ANSWER--=tRNA
10. What=are=the=steps=involved=in=the=scientific=method?=-
=CORRECT=ANSWER--
=Observation,=hypothesis,=prediction,=experimentation,=analys
is,=conclusion.
11. What=is=the=difference=between=a=solid=and=a=liquid?=-
=CORRECT=ANSWER--
=Solids=have=a=definite=shape=and=volume=while=liquids=have=a=
definite=volume=but=no=fixed=shape.
12. Which=part=of=the=respiratory=system=is=responsible=for=r
egulating=breathing=rate=and=depth?=-=CORRECT=ANSWER-
-=Diaphragm
13. What=is=the=difference=between=a=monosaccharide=and=a
=disaccharide?=-=CORRECT=ANSWER--
=Monosaccharides=are=simple=sugars=that=cannot=be=further=br
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, oken=down=into=simpler=sugars=while=disaccharides=are=comp
osed=of=two=simple=sugars.
14. Which=of=the=following=is=the=process=by=which=DNA=is=
copied=into=RNA?=-=CORRECT=ANSWER--=Transcription
15. What=is=the=role=of=calcium=in=muscle=contraction?=-
=CORRECT=ANSWER--
=Calcium=is=released=from=the=sarcoplasmic=reticulum=to=initia
te=the=sliding=of=actin=and=myosin=filaments.
16. What=is=the=name=of=the=dome-
shaped=muscle=that=plays=a=key=role=in=breathing?=-
=CORRECT=ANSWER--=Diaphragm
17. What=is=the=role=of=the=epididymis=in=sperm=maturation?
=-=CORRECT=ANSWER--
=The=epididymis=stores=and=protects=sperm=cells=until=ejaculati
on.
18. Which=of=the=following=is=a=function=of=the=respiratory=sy
stem?=-=CORRECT=ANSWER--
=Exchange=of=gases=between=the=body=and=the=environment
19. What=is=the=difference=between=isotonic=and=isometric=
muscle=contractions?=-=CORRECT=ANSWER--
=Isotonic=contractions=produce=movement=while=isometric=co
ntractions=produce=no=movement.
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, 20. Which=of=the=following=is=a=characteristic=of=innate=imm
unity=-=CORRECT=ANSWER--=It=provides=immediate,=non-
specific=protection.
21. Which=of=the=following=is=NOT=one=of=the=four=primary=
tissue=types=found=in=the=human=body?=-
=CORRECT=ANSWER--=Exocrine=glandular
22. Which=of=the=following=is=a=type=of=genetic=mutation=that
=involves=the=insertion=or=deletion=of=one=or=more=nucleotides
=in=a=DNA=sequence?=-=CORRECT=ANSWER--
=Frameshift=mutation
23. Which=of=the=following=describes=the=process=of=osmosis
?=-=CORRECT=ANSWER--
=Movement=of=water=molecules=from=an=area=of=high=concentr
ation=to=an=area=of=low=concentration=through=a=selectively=per
meable=membrane.
24. Which=of=the=following=is=a=chemical=property=of=a=subst
ance?=-=CORRECT=ANSWER--=Reactivity=with=acid
25. Which=statement=best=defines=the=difference=between=a=
physical=change=and=a=chemical=change?=-
=CORRECT=ANSWER--
=A=physical=change=involves=the=rearrangement=of=atoms=and=
molecules=while=a=chemical=change=involves=the=formation=of=
new=substances=with=different=chemical=properties.
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