Penn Foster Intro to Biology Exam Study Guide

Penn Foster Intro to Biology Exam Study
Guide Questions And Answers


_____ mare mthe msmallest munits mof mlife m- mAnswer m- mCells



What's mthe mcorrect morder mof mbiological morganization? m- mAnswer m- mPopulation, mcommunity,
mecosystem, mbiosphere




Modification mthat mmakes morganisms mmore msuited mto mtheir menvironment mis mcalled ma/an m-
mAnswer m- mAdaptation




Domain mwhose mmembers mlive min mvery mharsh menvironments--like msalt mlakes mand mhot msprings
m- mAnswer m- mArchaea




Control mgroups, mduring man mexperiment, mare m- mAnswer m- mIdentical mto mexperimental mgroup min
mall marea mexcept mthe mvariable mbeing mtested




The m_____ mis ma msubatomic mparticle mthat mcarries ma mpositive melectrical mcharge m- mAnswer m-
mProton




When man matom mhas mtwo mor mmore melectron mshells, mthe moutter mshell mwill mbe mmore mstable
mif mit mcontains m8 melectrons. mThis mconcept mis mcalled: m- mAnswer m- mOctet mRule




When mtwo moxygen matoms mjoin mtogether, ma m_______ mis mformed m- mAnswer m- mMolecule



The m_____ mbond mis ma mtype mof matomic mbond min mwhich matoms mshare melectrons mto mproduce
ma mcomplete moutter mshell m- mAnswer m- mCovalent

,The mpolarity mof mwater mmolecules mcauses mthem mto mbe mattracted mto mone manother mby ma
m_____ mbond m- mAnswer m- mHydrogen




As mthe mnumber mof mhydrogen mions min ma msolution mincreases, mthe mpH mof mthe msolution m-
mAnswer m- mDecreases




During mwinter monly mthe mupper msurface mof ma mlake mfreezes, mwhich mallows mfor mlife mto mpersist
mbelow mthe msurface. mWhich mof mwater's munique mproperties mis mresponsible mfor mthis
mphenomenon? m- mAnswer m- mLower mdensity mas mice




The mmost mabundant melement mby mweight min mthe mhuman mbody mis m- mAnswer m- mOxygen



The mpolysaccharide mstructural mcarbohydrate mmost mcommonly mused mby mliving mthings mis m-
mAnswer m- mCellulose




Which mone mof mthe mfollowing mfunctional mgroups mis massociated mwith mfatty macids? m- mAnswer m-
mCarboxyl




The mhard mbody mparts mof minsects mand mcrabs mare mcomposed mof ma mpolysaccharide mcalled m-
mAnswer m- mChitin




Cell mmembranes mare mcomposed mof mmainly mwhich mtype mof mlipids? m- mAnswer m- mPhospholipids



_____ mproteins mare mmade mof mpolypeptide mchains mfolded minto mrounded mcompact mshapes m-
mAnswer m- mGlobular




When mjoined mby ma mdehydration mreaction, mthe mcovalent mbond mbetween mthe mcarboxyl mgroups
mof mtwo

amino macids mis mcalled ma m_______ mbond. m- mAnswer m- mPeptide



The msugar min mRNA mis: m- mAnswer m- mRibose

, Within mcells, mthe msynthesis mof mproteins moccurs min mthe m- mAnswer m- mRibosomes



What's mthe mmain mfunction mof mthe mmitochondria? m- mAnswer m- mProducing mATP



The m_____ mkeep(s) mthe mcytoplasm mof mEukaryotic mcells mseparate mfrom mthe mDNA m- mAnswer m-
mNuclear mEnvelope




Organelles mthat muse msolar menergy mto mmake mcarbohydrates mare mcalled m- mAnswer m-
mChloroplasts




The m_____ mare msometimes mcalled mthe m"powerhouse" mof mthe mcell m- mAnswer m- mMitochondria



The mcell-to-cell mjunctions mthat mallow mcells mto mcommunicate mare mcalled m_______ mjunctions m-
mAnswer m- mGap




In ma/an m_____ mreaction, mone mreaction mreleases menergy mand mthe msecond muses menergy m-
mAnswer m- mCoupled




Which mis mnot ma mfeature mof menzymes? m- mAnswer m- mDestroyed mby mmetabolic mreactions



Entropy mrefers mto m- mAnswer m- mRelative mamount mof mdisorganization min ma msystem



Phagocytosis mrefers mto m- mAnswer m- mEndocytosis



_____ mis mmovement mof mH2O macross msemipermeable mmembranes mfrom mhigh mconcentration mto
mlow mconcentration m- mAnswer m- mOsmosis




In mthe melectron mpathway mfor mlight mreactions min mphotosynthesis, mPSII minvolves m- mAnswer m-
mSplit mwater