Biochem Module 4 Exam
which e.of e.the e.following e.monosaccharides e.is e.not e.an e.aldose?
a. erythrose
b. dihydroxyacetone
c. glucose
d. glyceraldehyde
e. ribose e.- e.CORRECT e.ANSWER-b.
dihydroxyacetone e.when e.two e.monosaccharides e.are
e.
e. epimers:
a. they e.differ e.only e.in e.the e.configuration e.about e.the e.penultimate e.carbon
b. one e.is e.an e.aldose, e.the e.other e.a e.ketose
c. they e.differ e.only e.in e.the e.configuration e.about e.one e.carbon e.atom
d. they e.form e.o-glycosidic e.bonds
e. they e.are e.oligosaccharides e.- e.CORRECT e.ANSWER-c. e.they e.differ e.only e.in
e.the e.configuration e.about e.one e.carbon e.atom
which e.pair e.is e.anomeric?
a. D-glucose e.and e.D-fructose
b. D-glucose e.and e.L-fructose
c. D-glucose e.and e.L-glucose
d. alpha-D-glucose e.and e.beta-D-fructose
e. alpha-D-glucose e.and e.beta-D-glucose e.- e.CORRECT e.ANSWER-e. e.alpha-D-
glucose e.and e.beta-D-glucose
lactose e.is e.made e.from e.linking e.galactose e.and e.glucose. e.when e.this e.happens:
a. a e.polysaccharide e.is e.formed
b. gas e.is e.eliminated
c. an e.epimer e.is e.formed
d. an e.anomeric e.carbon e.is e.formed e.on e.carbon-1
e. lactose e.forms e.by e.a e.condensation e.reaction e.- e.CORRECT e.ANSWER-e. e.lactose
e.forms e.by e.a e.condensation e.reaction
lactose e.is e.made e.from e.linking e.galactose e.and e.glucose. e.when e.this e.happens:
a. gas e.is e.eliminated
b. an e.anomeric e.carbon e.is e.formed e.on e.carbon-1
c. water e.is e.released
d. an e.epimer e.is e.formed
e. an e.aldose e.is e.formed e.- e.CORRECT e.ANSWER-c. e.water e.is e.released
, chitin e.and e.cellulose e.are e.both e.polymers e.of:
a. alpha-D-glucose
b. galactose
c. beta-D-glucose
d. idose
e. maltose e.- e.CORRECT e.ANSWER-c. e.beta-D-glucose
*starch, e.glycogen, e.amylose, e.and e.amylopectin e.= e.alpha-D-glucose
e. amylose e.and e.amylopectin e.are e.both e.polymers e.of:
a. alpha-D-glucose
b. beta-D-glucose
c. galactose
d. idose
e. maltose e.- e.CORRECT e.ANSWER-a. e.alpha-D-glucose
*cellulose e.and e.chitin e.= e.beta-D-glucose
*starch, e.glycogen, e.amylose, e.and e.amylopectin e.= e.alpha-D-glucose
e. which e.statement e.about e.starch e.and e.glycogen e.is e.false?
a. amylose e.is e.unbranched; e.amylopectin e.and e.glycogen e.contain e.many e.branches
b. both e.are e.heteropolymers e.of e.glucose
c. both e.have e.many e.-OH e.groups e.in e.their e.structures
d. both e.starch e.and e.glycogen e.are e.energy e.storage e.polysaccharides
e. glycogen e.is e.more e.extensively e.branched e.than e.starch e.- e.CORRECT e.ANSWER-b.
e.both e.are e.heteropolymers e.of e.glucose
which e.statement e.about e.starch e.and e.glycogen e.is e.false?
a. both e.have e.beta-D-glucose e.monomers
b. both e.starch e.and e.glycogen e.are e.energy e.storage e.polysaccharides
c. both e.are e.homopolymers e.of e.glucose
d. glycogen e.is e.more e.extensively e.branched e.that e.starch
e. both e.have e.O-glycosidic e.linkages e.- e.CORRECT e.ANSWER-a. e.both
e.have e.beta-D-glucose e.monomers
*starch e.and e.glycogen e.have e.alpha-D-glucose e.monomers
e. which e.monosaccharide e.is e.not e.a e.6-carbon
monosaccharide?
e.
which e.of e.the e.following e.monosaccharides e.is e.not e.an e.aldose?
a. erythrose
b. dihydroxyacetone
c. glucose
d. glyceraldehyde
e. ribose e.- e.CORRECT e.ANSWER-b.
dihydroxyacetone e.when e.two e.monosaccharides e.are
e.
e. epimers:
a. they e.differ e.only e.in e.the e.configuration e.about e.the e.penultimate e.carbon
b. one e.is e.an e.aldose, e.the e.other e.a e.ketose
c. they e.differ e.only e.in e.the e.configuration e.about e.one e.carbon e.atom
d. they e.form e.o-glycosidic e.bonds
e. they e.are e.oligosaccharides e.- e.CORRECT e.ANSWER-c. e.they e.differ e.only e.in
e.the e.configuration e.about e.one e.carbon e.atom
which e.pair e.is e.anomeric?
a. D-glucose e.and e.D-fructose
b. D-glucose e.and e.L-fructose
c. D-glucose e.and e.L-glucose
d. alpha-D-glucose e.and e.beta-D-fructose
e. alpha-D-glucose e.and e.beta-D-glucose e.- e.CORRECT e.ANSWER-e. e.alpha-D-
glucose e.and e.beta-D-glucose
lactose e.is e.made e.from e.linking e.galactose e.and e.glucose. e.when e.this e.happens:
a. a e.polysaccharide e.is e.formed
b. gas e.is e.eliminated
c. an e.epimer e.is e.formed
d. an e.anomeric e.carbon e.is e.formed e.on e.carbon-1
e. lactose e.forms e.by e.a e.condensation e.reaction e.- e.CORRECT e.ANSWER-e. e.lactose
e.forms e.by e.a e.condensation e.reaction
lactose e.is e.made e.from e.linking e.galactose e.and e.glucose. e.when e.this e.happens:
a. gas e.is e.eliminated
b. an e.anomeric e.carbon e.is e.formed e.on e.carbon-1
c. water e.is e.released
d. an e.epimer e.is e.formed
e. an e.aldose e.is e.formed e.- e.CORRECT e.ANSWER-c. e.water e.is e.released
, chitin e.and e.cellulose e.are e.both e.polymers e.of:
a. alpha-D-glucose
b. galactose
c. beta-D-glucose
d. idose
e. maltose e.- e.CORRECT e.ANSWER-c. e.beta-D-glucose
*starch, e.glycogen, e.amylose, e.and e.amylopectin e.= e.alpha-D-glucose
e. amylose e.and e.amylopectin e.are e.both e.polymers e.of:
a. alpha-D-glucose
b. beta-D-glucose
c. galactose
d. idose
e. maltose e.- e.CORRECT e.ANSWER-a. e.alpha-D-glucose
*cellulose e.and e.chitin e.= e.beta-D-glucose
*starch, e.glycogen, e.amylose, e.and e.amylopectin e.= e.alpha-D-glucose
e. which e.statement e.about e.starch e.and e.glycogen e.is e.false?
a. amylose e.is e.unbranched; e.amylopectin e.and e.glycogen e.contain e.many e.branches
b. both e.are e.heteropolymers e.of e.glucose
c. both e.have e.many e.-OH e.groups e.in e.their e.structures
d. both e.starch e.and e.glycogen e.are e.energy e.storage e.polysaccharides
e. glycogen e.is e.more e.extensively e.branched e.than e.starch e.- e.CORRECT e.ANSWER-b.
e.both e.are e.heteropolymers e.of e.glucose
which e.statement e.about e.starch e.and e.glycogen e.is e.false?
a. both e.have e.beta-D-glucose e.monomers
b. both e.starch e.and e.glycogen e.are e.energy e.storage e.polysaccharides
c. both e.are e.homopolymers e.of e.glucose
d. glycogen e.is e.more e.extensively e.branched e.that e.starch
e. both e.have e.O-glycosidic e.linkages e.- e.CORRECT e.ANSWER-a. e.both
e.have e.beta-D-glucose e.monomers
*starch e.and e.glycogen e.have e.alpha-D-glucose e.monomers
e. which e.monosaccharide e.is e.not e.a e.6-carbon
monosaccharide?
e.
