BIOL./2030:./Exam./2
How./long./ago./did./Eukaryotic./cells./evolve?
a../1./billion./years./ago
b../1.7./billion./years./ago
c../2./billion./years./ago
d../2.4./billion./years./ago./-./correct./answer./b../1.7./billion./years./ago
The./endosymbiotic./hypothesis:
a../explains./the./evolution./of./mitochondria./and./chloroplasts
b../demonstrates./one./solution./for./obtaining./limited./resources.
c../illustrates./the./results./of./the./first./germ./warfare./in./which./prokaryotes./devo
ured./other./prokaryotes.
d../All./answers./are./correct./-./correct./answer./d../All./answers./are./correct
Mitochondria./share./all./of./these./Prokaryotic./features./with./bacteria./EXCEPT:
a../similar./in./size./to./a./bacillus
b../contain./a./nucleoid./and./70s./ribosomes
c../undergo./mitosis
d../have./cytochromes./of./electron./transport./chain./embedded./in./plasma./membr
ane./-./correct./answer./c../undergo./mitosis
The./impact./of./algal./groups./on./our./personal./health./is
, a../extensive./resulting./in./many./incurable./diseases
b../minimal./because./few./species./are./pathogenic.
c../moderate./since./the./number./of./organisms./is./the./kingdom./Protista./1s./abun
dant.
d../None./of./these./choices./is./correct.-*./-
./correct./answer./b../minimal./because./few./species./are./pathogenic.
Which./of./following./statements./about./protozoans./is./NOT./true:
a../they./are./a./unicellular./eukaryote./that./demonstrate./animal-
like./characteristics./in./both./food./consumption./and./motility
b../protozoans./can./only./cause./GI./infections
c../They./have./cellular./features./like./flagella,./cilia,./and./pseudopodia./that./help.
/attain./food./and./aid./in./movement
d../the./sometimes./have./complex./life./cycles./alternating./between./cyst./and./tro
phozoite./stages../-./correct./answer./b../protozoans./can./only./cause./GI./infections
Because./of./their./extensive./diversity./among./the./more./than./20,000./species./of
./protozoans,./major./groups./are./often./classified./according./to:./
a../reproduction
b../trophozoite./versus./cyst./stages
c../locomotion./or./movement
d../relationship./with./other./organisms./as./in./parasitism./or./mutualism./-
./correct./answer./c../locomotion./or./movement
Which./of./the./follow./descriptions./is./true./of./algae?
How./long./ago./did./Eukaryotic./cells./evolve?
a../1./billion./years./ago
b../1.7./billion./years./ago
c../2./billion./years./ago
d../2.4./billion./years./ago./-./correct./answer./b../1.7./billion./years./ago
The./endosymbiotic./hypothesis:
a../explains./the./evolution./of./mitochondria./and./chloroplasts
b../demonstrates./one./solution./for./obtaining./limited./resources.
c../illustrates./the./results./of./the./first./germ./warfare./in./which./prokaryotes./devo
ured./other./prokaryotes.
d../All./answers./are./correct./-./correct./answer./d../All./answers./are./correct
Mitochondria./share./all./of./these./Prokaryotic./features./with./bacteria./EXCEPT:
a../similar./in./size./to./a./bacillus
b../contain./a./nucleoid./and./70s./ribosomes
c../undergo./mitosis
d../have./cytochromes./of./electron./transport./chain./embedded./in./plasma./membr
ane./-./correct./answer./c../undergo./mitosis
The./impact./of./algal./groups./on./our./personal./health./is
, a../extensive./resulting./in./many./incurable./diseases
b../minimal./because./few./species./are./pathogenic.
c../moderate./since./the./number./of./organisms./is./the./kingdom./Protista./1s./abun
dant.
d../None./of./these./choices./is./correct.-*./-
./correct./answer./b../minimal./because./few./species./are./pathogenic.
Which./of./following./statements./about./protozoans./is./NOT./true:
a../they./are./a./unicellular./eukaryote./that./demonstrate./animal-
like./characteristics./in./both./food./consumption./and./motility
b../protozoans./can./only./cause./GI./infections
c../They./have./cellular./features./like./flagella,./cilia,./and./pseudopodia./that./help.
/attain./food./and./aid./in./movement
d../the./sometimes./have./complex./life./cycles./alternating./between./cyst./and./tro
phozoite./stages../-./correct./answer./b../protozoans./can./only./cause./GI./infections
Because./of./their./extensive./diversity./among./the./more./than./20,000./species./of
./protozoans,./major./groups./are./often./classified./according./to:./
a../reproduction
b../trophozoite./versus./cyst./stages
c../locomotion./or./movement
d../relationship./with./other./organisms./as./in./parasitism./or./mutualism./-
./correct./answer./c../locomotion./or./movement
Which./of./the./follow./descriptions./is./true./of./algae?
