,1. In,.a,.bacterial,.cell,,.the,.DNA,.is,.in,.th
e:
A) cell,.envelope.
B) cell,.membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A,.major,.change,.occurring,.in,.the,.evolution,.of,.eukaryotes,.from,.prokaryotes,.was,.t
he
development,.of:
A) DNA.
B) photosynthetic,.capability.
C) plasma,.membranes.
D) ribosomes.
E) the,.nucleus.
3. In,.eukaryotes,,.the,.nucleus,.is,.enclosed,.by,.a,.double,.membrane,.called,.th
e:
A) cell,.membrane.
B) nuclear,.envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The,.dimensions,.of,.living,.cells,.are,.limited,,.on,.the,.lower,.end,.by,.the,.minimum,.number,
.of,.biomolecules,.necessary,.for,.function,,.and,.on,.the,.upper,.end,.by,.the,.rate,.of,.diffusion
,.of,.solutes,.such,.as,.oxygen.,.Except ,.for,.highly,.elongated,.cells,,.they,.usually,.have,.lengt
hs,.and,.diameters,.in,.the,.range,.of:
A) 0.1,.m,.to,.10,.m.
B) 0.3,.m,.to,.30,.m.
C) 0.3,.m,.to,.100,.m.
D) 1,.m,.to,.100,.m.
E) 1,.m,.to,.300,.m.
5. Which,.group,.of,.single-
celled,.microorganisms,.has,.many,.members,.found,.growing,.in
extreme,.environments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None,.of,.the,.answers,.is,.correct.
Page,.1
, 6. The,.bacterium,.E.,.coli,.requires,.simple,.organic,.molecules,.for,.growth,.and,.energyóit,
.is
therefore,.a:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which,.is,.a,.list,.of,.organelles?
A) mitochondria,,.chromatin,,.endoplasmic,.reticulum
B) peroxisomes,,.lysosomes,,.plasma,.membrane
C) proteasomes,,.peroxisomes,,.lysosomes
D) mitochondria,,.endoplasmic,.reticulum,,.peroxisomes
E) All,.of,.the,.answers,.are,.correct.
8. Which,.list,.has,.the,.cellular ,.components,.arranged,.in,.order,.of,.INCREASING,.siz
e?
A) amino,.acid,.<,.protein,.<,.mitochondrion,.<,.ribosome
B) amino ,.acid,.<,.protein,.<,.ribosome,.<,.mitochondrion
C) amino,.acid,.<,.ribosome,.<,.protein,.<,.mitochondrion
D) protein,.<,.amino,.acid,.<,.mitochondrion,.<,.ribosome
E) protein,.<,.ribosome,.<,.mitochondrion,.<,.amino,.acid
9. The,.three-
dimensional,.structure,.of,.macromolecules,.is,.formed,.and,.maintained,.primarily,.through,.
noncovalent,.interactions., . Which,.one,.of,.the,.following,.is,.NOT,.considered,.a
noncovalent,.interaction?
A) carbon-carbon,.bonds
B) hydrogen,.bonds
C) hydrophobic,.interactions
D) ionic,.interactions
E) van,.der,.Waals,.interactions
10. Which,.element,.is,.NOT,.among,.the,.four,.most,.abundant,.in,.living,.organism
s?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page,.2
, 11. The,.four,.covalent,.bonds,.in,.methane,.(CH4),.are,.arranged,.around,.carbon,.to,.give,.whi
ch,.geometry?
A) linear
B) tetrahedral
C) trigonal,.bipyramidal
D) trigonal,.planar
E) trigonal,.pyramidal
12. What,.functional,.groups,.are,.present,.on,.this,.molecule
?
A) ether,.and,.aldehyde
B) hydroxyl,.and,.aldehyde
C) hydroxyl,.and,.carboxylic,.acid
D) hydroxyl,.and,.ester
E) hydroxyl,.and,.ketone
13. The,.macromolecules,.that,.serve,.in,.the,.storage,.and,.transmission,.of,.genetic,.informati
on
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic,.acids.
E) proteins.
14. Stereoisomers,.that,.are,.nonsuperimposable,.mirror,.images,.of,.each,.other,.are,.known,.a
s:
A) anomers.
B) cis-trans,.isomers.
C) diastereoisomers.
D) enantiomers.
E) geometric,.isomers.
Page,.3
e:
A) cell,.envelope.
B) cell,.membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A,.major,.change,.occurring,.in,.the,.evolution,.of,.eukaryotes,.from,.prokaryotes,.was,.t
he
development,.of:
A) DNA.
B) photosynthetic,.capability.
C) plasma,.membranes.
D) ribosomes.
E) the,.nucleus.
3. In,.eukaryotes,,.the,.nucleus,.is,.enclosed,.by,.a,.double,.membrane,.called,.th
e:
A) cell,.membrane.
B) nuclear,.envelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The,.dimensions,.of,.living,.cells,.are,.limited,,.on,.the,.lower,.end,.by,.the,.minimum,.number,
.of,.biomolecules,.necessary,.for,.function,,.and,.on,.the,.upper,.end,.by,.the,.rate,.of,.diffusion
,.of,.solutes,.such,.as,.oxygen.,.Except ,.for,.highly,.elongated,.cells,,.they,.usually,.have,.lengt
hs,.and,.diameters,.in,.the,.range,.of:
A) 0.1,.m,.to,.10,.m.
B) 0.3,.m,.to,.30,.m.
C) 0.3,.m,.to,.100,.m.
D) 1,.m,.to,.100,.m.
E) 1,.m,.to,.300,.m.
5. Which,.group,.of,.single-
celled,.microorganisms,.has,.many,.members,.found,.growing,.in
extreme,.environments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None,.of,.the,.answers,.is,.correct.
Page,.1
, 6. The,.bacterium,.E.,.coli,.requires,.simple,.organic,.molecules,.for,.growth,.and,.energyóit,
.is
therefore,.a:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which,.is,.a,.list,.of,.organelles?
A) mitochondria,,.chromatin,,.endoplasmic,.reticulum
B) peroxisomes,,.lysosomes,,.plasma,.membrane
C) proteasomes,,.peroxisomes,,.lysosomes
D) mitochondria,,.endoplasmic,.reticulum,,.peroxisomes
E) All,.of,.the,.answers,.are,.correct.
8. Which,.list,.has,.the,.cellular ,.components,.arranged,.in,.order,.of,.INCREASING,.siz
e?
A) amino,.acid,.<,.protein,.<,.mitochondrion,.<,.ribosome
B) amino ,.acid,.<,.protein,.<,.ribosome,.<,.mitochondrion
C) amino,.acid,.<,.ribosome,.<,.protein,.<,.mitochondrion
D) protein,.<,.amino,.acid,.<,.mitochondrion,.<,.ribosome
E) protein,.<,.ribosome,.<,.mitochondrion,.<,.amino,.acid
9. The,.three-
dimensional,.structure,.of,.macromolecules,.is,.formed,.and,.maintained,.primarily,.through,.
noncovalent,.interactions., . Which,.one,.of,.the,.following,.is,.NOT,.considered,.a
noncovalent,.interaction?
A) carbon-carbon,.bonds
B) hydrogen,.bonds
C) hydrophobic,.interactions
D) ionic,.interactions
E) van,.der,.Waals,.interactions
10. Which,.element,.is,.NOT,.among,.the,.four,.most,.abundant,.in,.living,.organism
s?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page,.2
, 11. The,.four,.covalent,.bonds,.in,.methane,.(CH4),.are,.arranged,.around,.carbon,.to,.give,.whi
ch,.geometry?
A) linear
B) tetrahedral
C) trigonal,.bipyramidal
D) trigonal,.planar
E) trigonal,.pyramidal
12. What,.functional,.groups,.are,.present,.on,.this,.molecule
?
A) ether,.and,.aldehyde
B) hydroxyl,.and,.aldehyde
C) hydroxyl,.and,.carboxylic,.acid
D) hydroxyl,.and,.ester
E) hydroxyl,.and,.ketone
13. The,.macromolecules,.that,.serve,.in,.the,.storage,.and,.transmission,.of,.genetic,.informati
on
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic,.acids.
E) proteins.
14. Stereoisomers,.that,.are,.nonsuperimposable,.mirror,.images,.of,.each,.other,.are,.known,.a
s:
A) anomers.
B) cis-trans,.isomers.
C) diastereoisomers.
D) enantiomers.
E) geometric,.isomers.
Page,.3
