BIO 305 EXAM QUESTIONS AND ACCURATE
ANSWERS 100% VERIFIED
What is the correct systematic name for the disaccharide below? (you do not need to
know the monomer names to answer this question)
A. O-β-D-glucopyranosyl-(1-->4)-β-D-glucopyranose
B.O-α-D-glucopyranosyl-(1--> 2)-α-D-glucopyranose
C.O-β-D-glucopyranosyl-(1-->2)-α-D-glucopyranose
D. O-β-D-glucofuranosyl-(1--> 4)-β-D-glucofuranose - ANSWER
O-β-D-glucopyranosyl-(1-->4)-β-D-glucopyranose
Number of reducing end(s) in sucrose (structure shown below) is/are
A.0
B. 3
C. 2
D. 1 - ANSWER 0
When carbohydrate monomers combine to form dimers and polymers, they form an
_________ bond, and this bond is called a _____________ linkage.
A. Acyl, peptide
B.Amide, Peptide
C. Ether, Glycosidic
D. Ester, Glycosidic - ANSWER Ether, Glycosidic
Of the following sugar structures below which one is least likely?
A. A
,B. B
C. C
D. D - ANSWER A
The depolymerization of disaccharides into two monosaccharides occurs via a/an
_____________ reaction.
A. amidation
B. mutarotation
C. hydrolysis
D. condensation - ANSWER hydrolysis
Glycogen can form
A. alpha 1--> 6 linkages only
B. alpha 1--> 4 and alpha 1--> 6 linkages
C. alpha 1-->4 and beta 1--> 6 linkages
D. alpha 1--> 4 linkages only - ANSWER alpha 1--> 4 and alpha 1--> 6 linkages
Cellulose contains___ linkages that ___ be digested by animals.
A. α1--> 6 glycosidic ; can
B. α1--> 4 glycosidic ; canNOT
C. β1--> 4 glycosidic ; canNOT
D. α 1 --> 4 glycosidic ; can - ANSWER β1--> 4 glycosidic ; canNOT
Glycogen contains___ linkages that ___ be digested by animals.
A. α1--> 2 glycosidic ; can
B. α1 --> 4 glycosidic ; can
C. β1--> 4 glycosidic ; canNOT
,D. α1--> 4 glycosidic ; canNOT - ANSWER α1 --> 4 glycosidic ; can
Monosaccharides are connected by _________ in polysaccharides. Chemically, these
linkages are _____ bonds.
A. peptide bonds; ether
B. glycosidic linkages; ether
C. glycosidic linkages; ester
D. peptide bonds; amide - ANSWER glycosidic linkages; ether
Out of starch, glycogen, cellulose and chitin, carbohydrate polymers with beta linkages
are
A. Cellulose and Chitin
B. Glycogen and Starch
C. Cellulose and Starch
D. Glycogen and Chitin - ANSWER Cellulose and Chitin
In N-linked glycoproteins, the sugar molecule is usually bound to
A. Asp
B. Thr
C. Asn
D. Ser - ANSWER Asn
The fructose molecule below has the scientific name of
A. β-D-Fructopyranose
B. β-D-Fructofuranose
C. α-D-Fructopyranose
D. α-D-Fructofuranose - ANSWER β-D-Fructofuranose
, Below is the __________________ anomer of monosaccharide.
A. alpha-
B. beta-
C. L-
D. D- - ANSWER beta-
Which one of the following is not an acceptable structure of a monosaccharide sugar?
A. D
B. All of the sugar structures given are acceptable
C. A
D. C - ANSWER A
Two monosaccharide isomers with 4 chiral carbons in which the configuration of all of
chiral carbon are inverted with respect to each other are called as
A. Anomers
B. Enantiomers
C. Diastereomers
D. Epimers - ANSWER Enantiomers
Functional carbohydrates exist in the form of
A. Monosaccharides, Disaccharides and Polysaccharides
B. Polysaccharides
C. Monosaccharides and Disaccharides
D. Monosaccharides - ANSWER Monosaccharides, Disaccharides and
Polysaccharides
What are the different number of forms that can exist for a ketopentose.
A. 16
ANSWERS 100% VERIFIED
What is the correct systematic name for the disaccharide below? (you do not need to
know the monomer names to answer this question)
A. O-β-D-glucopyranosyl-(1-->4)-β-D-glucopyranose
B.O-α-D-glucopyranosyl-(1--> 2)-α-D-glucopyranose
C.O-β-D-glucopyranosyl-(1-->2)-α-D-glucopyranose
D. O-β-D-glucofuranosyl-(1--> 4)-β-D-glucofuranose - ANSWER
O-β-D-glucopyranosyl-(1-->4)-β-D-glucopyranose
Number of reducing end(s) in sucrose (structure shown below) is/are
A.0
B. 3
C. 2
D. 1 - ANSWER 0
When carbohydrate monomers combine to form dimers and polymers, they form an
_________ bond, and this bond is called a _____________ linkage.
A. Acyl, peptide
B.Amide, Peptide
C. Ether, Glycosidic
D. Ester, Glycosidic - ANSWER Ether, Glycosidic
Of the following sugar structures below which one is least likely?
A. A
,B. B
C. C
D. D - ANSWER A
The depolymerization of disaccharides into two monosaccharides occurs via a/an
_____________ reaction.
A. amidation
B. mutarotation
C. hydrolysis
D. condensation - ANSWER hydrolysis
Glycogen can form
A. alpha 1--> 6 linkages only
B. alpha 1--> 4 and alpha 1--> 6 linkages
C. alpha 1-->4 and beta 1--> 6 linkages
D. alpha 1--> 4 linkages only - ANSWER alpha 1--> 4 and alpha 1--> 6 linkages
Cellulose contains___ linkages that ___ be digested by animals.
A. α1--> 6 glycosidic ; can
B. α1--> 4 glycosidic ; canNOT
C. β1--> 4 glycosidic ; canNOT
D. α 1 --> 4 glycosidic ; can - ANSWER β1--> 4 glycosidic ; canNOT
Glycogen contains___ linkages that ___ be digested by animals.
A. α1--> 2 glycosidic ; can
B. α1 --> 4 glycosidic ; can
C. β1--> 4 glycosidic ; canNOT
,D. α1--> 4 glycosidic ; canNOT - ANSWER α1 --> 4 glycosidic ; can
Monosaccharides are connected by _________ in polysaccharides. Chemically, these
linkages are _____ bonds.
A. peptide bonds; ether
B. glycosidic linkages; ether
C. glycosidic linkages; ester
D. peptide bonds; amide - ANSWER glycosidic linkages; ether
Out of starch, glycogen, cellulose and chitin, carbohydrate polymers with beta linkages
are
A. Cellulose and Chitin
B. Glycogen and Starch
C. Cellulose and Starch
D. Glycogen and Chitin - ANSWER Cellulose and Chitin
In N-linked glycoproteins, the sugar molecule is usually bound to
A. Asp
B. Thr
C. Asn
D. Ser - ANSWER Asn
The fructose molecule below has the scientific name of
A. β-D-Fructopyranose
B. β-D-Fructofuranose
C. α-D-Fructopyranose
D. α-D-Fructofuranose - ANSWER β-D-Fructofuranose
, Below is the __________________ anomer of monosaccharide.
A. alpha-
B. beta-
C. L-
D. D- - ANSWER beta-
Which one of the following is not an acceptable structure of a monosaccharide sugar?
A. D
B. All of the sugar structures given are acceptable
C. A
D. C - ANSWER A
Two monosaccharide isomers with 4 chiral carbons in which the configuration of all of
chiral carbon are inverted with respect to each other are called as
A. Anomers
B. Enantiomers
C. Diastereomers
D. Epimers - ANSWER Enantiomers
Functional carbohydrates exist in the form of
A. Monosaccharides, Disaccharides and Polysaccharides
B. Polysaccharides
C. Monosaccharides and Disaccharides
D. Monosaccharides - ANSWER Monosaccharides, Disaccharides and
Polysaccharides
What are the different number of forms that can exist for a ketopentose.
A. 16
