BIOLl 1108l Finall Examl –l Principlesl ofl
Biologyl IIl (Latestl 2026/l 2027l Update)l
Guide|l 100%l Verifiedl Questionsl &l
Answersl |l Gradel A
Q:l Wherel didl Homol Sapiensl evolve
Answer:
Africa
Q:l Whyl dol wel thinkl malel Neanderthalsl matedl withl non-Africanl ancestrall Homol
sapiens?
Answer:
becausel Neanderthall nuclearl DNAl sequencesl arel presentl inl thel humanl genel pooll andl
Neanderthall mtDNAl sequencesl arel not
Q:l Howl canl twol cellsl ofl al complexl multicellularl organisml havel thel samel genome,l
butl markedlyl differentl structuresl andl functions?
Answer:
Differentl genesl arel expressedl inl differentl cells
Q:l neotony
Answer:
retentionl ofl juvenilel characteristicl inl anl adult
Q:l Homol naledi
,Answer:
hasl handsl andl feetl thatl arel veryl human-likel evenl thoughl hisl pelvisl andl shouldersl arel
muchl morel primitive
Q:l cytoskeleton
Answer:
scaffoldingl ofl dynamicl proteins
Q:l Whyl dol mitochondrial andl chloroplastl havel relativelyl smalll genomes?
Answer:
Overl time,l muchl ofl theirl nucleicl acidl hasl migratedl tol thel hostl celll nucleus.
Q:l Howl oldl arel thel fossilsl ofl eukaryotes?
Answer:
1.8l billionl years
Q:l Starvation
Answer:
causesl amoeboidl feedingl cellsl ofl cellularl slimel moldsl tol aggregatel intol al largel
multicellularl "slug"
Q:l complexl patternsl ofl genel regulation
Answer:
enabledl eukaryotesl tol evolvel complexl lifel cyclesl andl programsl ofl multicellularl
development
,Q:l phagocytosis
Answer:
engulf,l package,l transport,l andl digestl foodl particles
Q:l derivedl cyanobacteria
Answer:
chloroplasts
Q:l Cellsl inl thel interiorl ofl complexl multicellularl organismsl arel ablel tol respondl tol
environmentall signalsl through...
Answer:
receptorsl forl signalsl sentl froml exteriorl cellsl thatl relayl informationl aboutl environmentall
changes
Q:l Simplel multicellularl eukaryotes
Answer:
-cellsl arel ablel tol adherel tol onel another
-cellsl arel capablel ofl al widel rangel ofl functions
-thel lossl ofl onel orl morel celll doesn'tl leadl tol thel deathl ofl thel organism
Q:l Thel acquisitionl ofl traitsl necessaryl forl complexl multicellularityl occurredl
independentlyl inl plantsl andl animals,l butl tookl placel inl al specificl order.l Inl whatl orderl
didl thesel processesl evolve?
Answer:
celll adhesionl molecules,l al mechanisml ofl communication,l bulkl flow
Q:l meristems
, Answer:
enablel plantsl tol developl complexl anatomicall structuresl despitel thel factl thatl plantsl canl
notl move
localizedl regionsl ofl activelyl dividingl cells
Q:l Whatl isl believedl tol bel thel majorl eventl thatl ledl tol thel appearancel ofl largel
complexl animalsl onl Earth?
Answer:
increasel inl atmosphericl oxygen
Q:l bulkl transportation
Answer:
thel meansl byl whichl moleculesl movel throughl organismsl atl ratesl beyondl thosel possiblel
byl diffusionl acrossl al concentrationl gradient
Q:l gapl junctions
Answer:
animall celll communication
Q:l Forl thel "light"l reactionl tol occur,l anl electronl donorl (_______)l andl anl ultimatel
receptorl (________)l arel needed.
Answer:
water,l NADP+
Q:l H2O
Answer:
oxidizedl inl thel photosyntheticl reaction
Biologyl IIl (Latestl 2026/l 2027l Update)l
Guide|l 100%l Verifiedl Questionsl &l
Answersl |l Gradel A
Q:l Wherel didl Homol Sapiensl evolve
Answer:
Africa
Q:l Whyl dol wel thinkl malel Neanderthalsl matedl withl non-Africanl ancestrall Homol
sapiens?
Answer:
becausel Neanderthall nuclearl DNAl sequencesl arel presentl inl thel humanl genel pooll andl
Neanderthall mtDNAl sequencesl arel not
Q:l Howl canl twol cellsl ofl al complexl multicellularl organisml havel thel samel genome,l
butl markedlyl differentl structuresl andl functions?
Answer:
Differentl genesl arel expressedl inl differentl cells
Q:l neotony
Answer:
retentionl ofl juvenilel characteristicl inl anl adult
Q:l Homol naledi
,Answer:
hasl handsl andl feetl thatl arel veryl human-likel evenl thoughl hisl pelvisl andl shouldersl arel
muchl morel primitive
Q:l cytoskeleton
Answer:
scaffoldingl ofl dynamicl proteins
Q:l Whyl dol mitochondrial andl chloroplastl havel relativelyl smalll genomes?
Answer:
Overl time,l muchl ofl theirl nucleicl acidl hasl migratedl tol thel hostl celll nucleus.
Q:l Howl oldl arel thel fossilsl ofl eukaryotes?
Answer:
1.8l billionl years
Q:l Starvation
Answer:
causesl amoeboidl feedingl cellsl ofl cellularl slimel moldsl tol aggregatel intol al largel
multicellularl "slug"
Q:l complexl patternsl ofl genel regulation
Answer:
enabledl eukaryotesl tol evolvel complexl lifel cyclesl andl programsl ofl multicellularl
development
,Q:l phagocytosis
Answer:
engulf,l package,l transport,l andl digestl foodl particles
Q:l derivedl cyanobacteria
Answer:
chloroplasts
Q:l Cellsl inl thel interiorl ofl complexl multicellularl organismsl arel ablel tol respondl tol
environmentall signalsl through...
Answer:
receptorsl forl signalsl sentl froml exteriorl cellsl thatl relayl informationl aboutl environmentall
changes
Q:l Simplel multicellularl eukaryotes
Answer:
-cellsl arel ablel tol adherel tol onel another
-cellsl arel capablel ofl al widel rangel ofl functions
-thel lossl ofl onel orl morel celll doesn'tl leadl tol thel deathl ofl thel organism
Q:l Thel acquisitionl ofl traitsl necessaryl forl complexl multicellularityl occurredl
independentlyl inl plantsl andl animals,l butl tookl placel inl al specificl order.l Inl whatl orderl
didl thesel processesl evolve?
Answer:
celll adhesionl molecules,l al mechanisml ofl communication,l bulkl flow
Q:l meristems
, Answer:
enablel plantsl tol developl complexl anatomicall structuresl despitel thel factl thatl plantsl canl
notl move
localizedl regionsl ofl activelyl dividingl cells
Q:l Whatl isl believedl tol bel thel majorl eventl thatl ledl tol thel appearancel ofl largel
complexl animalsl onl Earth?
Answer:
increasel inl atmosphericl oxygen
Q:l bulkl transportation
Answer:
thel meansl byl whichl moleculesl movel throughl organismsl atl ratesl beyondl thosel possiblel
byl diffusionl acrossl al concentrationl gradient
Q:l gapl junctions
Answer:
animall celll communication
Q:l Forl thel "light"l reactionl tol occur,l anl electronl donorl (_______)l andl anl ultimatel
receptorl (________)l arel needed.
Answer:
water,l NADP+
Q:l H2O
Answer:
oxidizedl inl thel photosyntheticl reaction
