Bio-chem Module 4 Exam Questions
with Verified Answers
which of the following monosaccharides is not an aldose?
a. erythrose
b. dihydroxyacetone
c. glucose
d. glyceraldehyde
e. ribose - Answer: b. dihydroxyacetone
when two monosaccharides are epimers:
a. they differ only in the configuration about the penultimate carbon
b. one is an aldose, the other a ketose
c. they differ only in the configuration about one carbon atom
d. they form o-glycosidic bonds
e. they are oligosaccharides - Answer: c. they differ only in the configuration
about one carbon atom
which pair is anomeric?
a. D-glucose and D-fructose
b. D-glucose and L-fructose
, c. D-glucose and L-glucose
d. alpha-D-glucose and beta-D-fructose
e. alpha-D-glucose and beta-D-glucose - Answer: e. alpha-D-glucose and beta-D-
glucose
lactose is made from linking galactose and glucose. when this happens:
a. a polysaccharide is formed
b. gas is eliminated
c. an epimer is formed
d. an anomeric carbon is formed on carbon-1
e. lactose forms by a condensation reaction - Answer: e. lactose forms by a
condensation reaction
lactose is made from linking galactose and glucose. when this happens:
a. gas is eliminated
b. an anomeric carbon is formed on carbon-1
c. water is released
d. an epimer is formed
e. an aldose is formed - Answer: c. water is released
chitin and cellulose are both polymers of:
a. alpha-D-glucose
with Verified Answers
which of the following monosaccharides is not an aldose?
a. erythrose
b. dihydroxyacetone
c. glucose
d. glyceraldehyde
e. ribose - Answer: b. dihydroxyacetone
when two monosaccharides are epimers:
a. they differ only in the configuration about the penultimate carbon
b. one is an aldose, the other a ketose
c. they differ only in the configuration about one carbon atom
d. they form o-glycosidic bonds
e. they are oligosaccharides - Answer: c. they differ only in the configuration
about one carbon atom
which pair is anomeric?
a. D-glucose and D-fructose
b. D-glucose and L-fructose
, c. D-glucose and L-glucose
d. alpha-D-glucose and beta-D-fructose
e. alpha-D-glucose and beta-D-glucose - Answer: e. alpha-D-glucose and beta-D-
glucose
lactose is made from linking galactose and glucose. when this happens:
a. a polysaccharide is formed
b. gas is eliminated
c. an epimer is formed
d. an anomeric carbon is formed on carbon-1
e. lactose forms by a condensation reaction - Answer: e. lactose forms by a
condensation reaction
lactose is made from linking galactose and glucose. when this happens:
a. gas is eliminated
b. an anomeric carbon is formed on carbon-1
c. water is released
d. an epimer is formed
e. an aldose is formed - Answer: c. water is released
chitin and cellulose are both polymers of:
a. alpha-D-glucose
