Page1
,1. Inabacterialcell,theDNAisinthe:
A) cellenvelope.
B) cellmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Amajorchangeoccurringintheevolutionofeukaryotesfromprokaryoteswasthe
developmentof:
A) DNA.
B) photosyntheticcapability.
C) plasmamembranes.
D) ribosomes.
E) thenucleus.
3. Ineukaryotes,thenucleusisenclosedbyadoublemembranecalledthe:
A) cellmembrane.
B) nuclearenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Thedimensionsoflivingcellsarelimited,onthelowerendbytheminimumnumberofbiomolec
ulesnecessaryforfunction,andontheupperendbytherateofdiffusionof
solutessuchasoxygen.Exceptforhighlyelongatedcells,theyusuallyhavelengthsanddiamete
rsintherangeof:
A) 0.1mto10m.
B) 0.3mto30m.
C) 0.3mto100m.
D) 1mto100m.
E) 1mto300m.
Page2
,5. Whichgroupofsingle-celledmicroorganismshasmanymembersfoundgrowingin
extremeenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneoftheanswersiscorrect.
6. ThebacteriumE.colirequiressimpleorganicmoleculesforgrowthandenergy—itis
thereforea:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Whichisalistoforganelles?
A) mitochondria,chromatin,endoplasmicreticulum
B) peroxisomes,lysosomes,plasmamembrane
C) proteasomes,peroxisomes,lysosomes
D) mitochondria,endoplasmicreticulum,peroxisomes
E) Alloftheanswersarecorrect.
8. WhichlisthasthecellularcomponentsarrangedinorderofINCREASINGsize?
A) aminoacid<protein<mitochondrion<ribosome
B) aminoacid<protein<ribosome<mitochondrion
C) aminoacid<ribosome<protein<mitochondrion
D) protein<aminoacid<mitochondrion<ribosome
E) protein<ribosome<mitochondrion<aminoacid
9. Thethree-
dimensionalstructureofmacromoleculesisformedandmaintainedprimarilythroughnoncov
alentinteractions.WhichoneofthefollowingisNOTconsidereda
noncovalentinteraction?
A) carbon-carbonbonds
B) hydrogenbonds
C) hydrophobicinteractions
D) ionicinteractions
Page3
, E) vanderWaalsinteractions
10. WhichelementisNOTamongthefourmostabundantinlivingorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
11. Thefourcovalentbondsinmethane(CH4)arearrangedaroundcarbontogivewhich
geometry?
A) linear
B) tetrahedral
C) trigonalbipyramidal
D) trigonalplanar
E) trigonalpyramidal
12. Whatfunctionalgroupsarepresentonthismolecule?
A) etherandaldehyde
B) hydroxylandaldehyde
C) hydroxylandcarboxylicacid
D) hydroxylandester
E) hydroxylandketone
13. Themacromoleculesthatserveinthestorageandtransmissionofgeneticinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicacids.
E) proteins.
14. Stereoisomersthatarenonsuperimposablemirrorimagesofeachotherareknownas:
Page4
,1. Inabacterialcell,theDNAisinthe:
A) cellenvelope.
B) cellmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Amajorchangeoccurringintheevolutionofeukaryotesfromprokaryoteswasthe
developmentof:
A) DNA.
B) photosyntheticcapability.
C) plasmamembranes.
D) ribosomes.
E) thenucleus.
3. Ineukaryotes,thenucleusisenclosedbyadoublemembranecalledthe:
A) cellmembrane.
B) nuclearenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Thedimensionsoflivingcellsarelimited,onthelowerendbytheminimumnumberofbiomolec
ulesnecessaryforfunction,andontheupperendbytherateofdiffusionof
solutessuchasoxygen.Exceptforhighlyelongatedcells,theyusuallyhavelengthsanddiamete
rsintherangeof:
A) 0.1mto10m.
B) 0.3mto30m.
C) 0.3mto100m.
D) 1mto100m.
E) 1mto300m.
Page2
,5. Whichgroupofsingle-celledmicroorganismshasmanymembersfoundgrowingin
extremeenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneoftheanswersiscorrect.
6. ThebacteriumE.colirequiressimpleorganicmoleculesforgrowthandenergy—itis
thereforea:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Whichisalistoforganelles?
A) mitochondria,chromatin,endoplasmicreticulum
B) peroxisomes,lysosomes,plasmamembrane
C) proteasomes,peroxisomes,lysosomes
D) mitochondria,endoplasmicreticulum,peroxisomes
E) Alloftheanswersarecorrect.
8. WhichlisthasthecellularcomponentsarrangedinorderofINCREASINGsize?
A) aminoacid<protein<mitochondrion<ribosome
B) aminoacid<protein<ribosome<mitochondrion
C) aminoacid<ribosome<protein<mitochondrion
D) protein<aminoacid<mitochondrion<ribosome
E) protein<ribosome<mitochondrion<aminoacid
9. Thethree-
dimensionalstructureofmacromoleculesisformedandmaintainedprimarilythroughnoncov
alentinteractions.WhichoneofthefollowingisNOTconsidereda
noncovalentinteraction?
A) carbon-carbonbonds
B) hydrogenbonds
C) hydrophobicinteractions
D) ionicinteractions
Page3
, E) vanderWaalsinteractions
10. WhichelementisNOTamongthefourmostabundantinlivingorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
11. Thefourcovalentbondsinmethane(CH4)arearrangedaroundcarbontogivewhich
geometry?
A) linear
B) tetrahedral
C) trigonalbipyramidal
D) trigonalplanar
E) trigonalpyramidal
12. Whatfunctionalgroupsarepresentonthismolecule?
A) etherandaldehyde
B) hydroxylandaldehyde
C) hydroxylandcarboxylicacid
D) hydroxylandester
E) hydroxylandketone
13. Themacromoleculesthatserveinthestorageandtransmissionofgeneticinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicacids.
E) proteins.
14. Stereoisomersthatarenonsuperimposablemirrorimagesofeachotherareknownas:
Page4
