MTTC Integrated Science Exam questions and answers 100% verified.

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MTTC INTEGRATED SCIENCE EXAM
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QUESTIONS AND ANSWERS 100%
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VERIFIED. o o

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Independent oVariable o- o o ocorrect oanswer. o oThe oexperimental ofactor othat ois
omanipulated; othe ovariable owhose oeffect ois obeing ostudied. oPlaced oon othe ox-axis

o(horizontal) oon oa ograph. o
o

Dependent oVariable o- o o ocorrect oanswer. o o The ovariable othat ois omeasured oin oan
oexperiment. o
o
Placed oon othe oy-axis o(vertical) oon oa
ograph.
o

Scientific otheory o- o o ocorrect oanswer. o oMust obe orepeatable. oPossible oto obe odisproved
oand o
o
capable oof

ochange.
o

Sampling oand oSample oSize o- o o ocorrect oanswer. o oRandom osampling ois othe
opreferred, obut o
o
isn't oalways opossible. oA olarge osample owill oyield othe omost oaccurate
oinformation.
o

Manipulating oVariables o- o o o correct oanswer. o o Only oone ovariable oshould obe
omanipulated oat o
o
a
otime.
o

Control ovariable o- o o ocorrect oanswer. o oA ofactor othat ois oheld oconstant oto otest othe
orelative o
o
impact oof oan oindependent
ovariable
o

Response oto oLab oAccident o- o o ocorrect oanswer. o oIn omost ocases, o911 oshould obe
ocalled o
o
immediately.
o

Response oto oFire oin oa oBeaker oor oFlask o- o o o correct oanswer. o o Do onot ouse oa ofire
oextinguisher. o

, o
Just oplace oa owatch oglass oor owet otowel oover oit oto ocut ooff oOxygen
osupply.
o

Guidelines ofor oDissections o- o o ocorrect oanswer. o oSpecimens oshould obe orinsed obefore
ousing. oLatex oglover opreferred. oAvoid ouse oof oformaldehyde/dispose oof ocorrectly. oNeed

oto oprovide oalternative ofor ostudents owith omoral oobjections oto oassingment. o

Storing oLab oChemicals o- o o ocorrect oanswer. o oStore oall oin osecured, odry oarea. oAcids
olocked oin o
o
separate
oarea.
o

Origin oof oBiological oSciences o- o o ocorrect oanswer. o oTraced oback oto oancient oGreeks
o(i.e. o
o
Aristotle)
o

Andrea oVesalius o- o o o correct oanswer. o o Dissected ohuman obodies; ocreated oa
obook oon o
o
anatomy
o

Anton ovan oLeeuwenhoek o- o o ocorrect oanswer. o oFather oof oMicroscopy, ofirst oto osee
oand o
o
describe obacteria, oyeast oplants, oand omicroscopic olife ofound oin
owater
o

Scanning oElectron oMicroscope o(SEM) o- o o ocorrect oanswer. o oInstead oof oa olight, oa
obeam oof o
o
electrons opass othrough ospecimen. oResolution oabout o1,000 otimes ogreater othan
olight
o
microscope. oWill okill ospecimen
othough.
o

Robert oHooke o- o o ocorrect oanswer. o oFamous ofor oHook's olaw odescribing oelasticity.
oBut o
o
called oa o"virtuoso", oable oto ocontribute ofindings oto oany omajor ofield oin
oscience
o

Carl oVon oLinnaeus o- o o ocorrect oanswer. o oFamous ofor obinomial osystem oof
onomenclature. o
o
Each oliving oorganism ohas otwo onames, oa ogenus oand ospecies. oConsidered
ofather oof
o
modern oecology oand

otaxonomy
o

Pasteur o- o o ocorrect oanswer. o oDiscovered orole oof omicroorganisms oin othe ocause oof
odisease, o
o
pasteurization, oand orabies


ovaccine.

,o

Koch's oPostulates o- o o ocorrect oanswer. o oSpecific odiseases ocaused oby ospecific
opathogens o
o

Cell otheory o- o o ocorrect oanswer. o oCell ois othe ocommon ostructural ounit oin oplants oand
oanimals. o
o
Proposed oby oMattias oScheleiden oand
oSchwann.
o

Watson oand oCrick o- o o ocorrect oanswer. o oDiscovered othe ostructure oof oDNA owas oa
odouble o
o
helix o(in othe o1950s). oMade oit opossible oto ounderstand ohow oDNA oreplicated
oand
o
synthesized
oproteins
o

Commonalities oAmong oall oSciences o- o o ocorrect oanswer. o o- oSystems, oorder,
oand o
o
organization
o
- oEvidence, omodels, oand

oexplanation
o
- oConstancy, ochange, oand

omeasurement
o
- oEvolution oand

oequilibrium
o
- oForm oand

ofunction
o

Empirical oEvidence o- o o ocorrect oanswer. o o All oevidence ois oempirical; oall oevidence
omust obe o
o
observed oby othe ofive
osense.
o

Peer-reviewed oJournals o- o o ocorrect oanswer. o o Most oaccepted osource ofor
oinformation oon o
o
scientific oexperiments oand

ostudies
o

Air oPollution o- o o ocorrect oanswer. o oChemicals oin othe oair; oinclude ocarbon omonoxide,
osulfur o
o
dioxide, oand ochlorofluorocarbons

o(CFC's)
o

Water oPollution o- o o ocorrect oanswer. o oContaminants oenter owater oby oground orunoff
oor oby o
o
leaching
o

, Thermal opollution o- o o ocorrect oanswer. o oFactories odump owater oat ohigh otemperatures
owhich o
o
increases onormal owater otemperatures. oThis omeans othe owater ocan ohold oless
ogas,
o
disrupting othe

oecosystem
o

Greenhouse ogasses o- o o ocorrect oanswer. o oI.e. ocarbon odioxide oand onitrous ooxide.
oConcentration oof othem ois oincreased oby oburning ofossil ofuels. oThese ogasses oabsorb

oand otrap oheat, otherefore owarming othe oplanet o
o

Acid oran o- o o ocorrect oanswer. o oSulfur oand onitrous ooxides oconverted oto oacids
oand o
o
contaminate owater

osupplies
o

Prokaryotes o- o o o correct oanswer. o o Single-celled oorganisms othat odo onot ohave oa
omembrane-
o
bound
onucleus
o

Flagella o- o o ocorrect oanswer. o oAppendages oon obacteria ocells; oused ofor omovement o
o

Pili o- o o ocorrect oanswer. o oUsed oby obacteria ocells oto oattach oto oother ocells o
o

Cell oWall o- o o ocorrect oanswer. o oa othin omembrane oaround othe ocytoplasm oof oa ocell o
o

Cell omembrane o- o o ocorrect oanswer. o oa ophospholipid olayer othat ocovers oa ocell's osurface
oand o
o
acts oas oa obarrier obetween othe oinside oof oa ocell oand othe ocell's
oenvironment
o

Eukaryotes o- o o ocorrect oanswer. o oorganisms owhose ocells ocontain oa onucleus oand
oother o
o
membrane obound

oorganelles
o

Nucleus o- o o ocorrect oanswer. o o a opart oof othe ocell ocontaining oDNA oand oRNA oand
oresponsible o
o
for ogrowth oand


oreproduction
o

Nucleolus o- o o ocorrect oanswer. o oThe oorganelle owhere oribosomes oare omade,
osynthesized o
o
and opartially oassembled, olocated oin othe
onucleus
o

Ribosomes o- o o ocorrect oanswer. o osite oof oprotein osynthesis o
o