Download CHEM 210 Biochemistry Module 4 Exam (2025 / 2026) Portage Learning Questions with Answers and more Exams Biochemistry in PDF only on Docsity!
Question 2
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Question 4
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CHEM 210 - MODULE 4 EXAM
Which of the following monosaccharides is a ketose?
Dihydroxyacetone Galactose Glucose Glyceraldehyde Idose Dihydroxyacetone
When two carbohydrates are epimers:
One is a pyranose, the other a furanose One is an aldose, the other a ketose They differ in length by one carbon They differ only in the configuration about one carbon atom They react differently with iodine 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) -D-glucose and -D-glucose
E) α-D-glucose and β-L-glucose
D) -D-glucose and -D-glucose
Question 1
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Question 5
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Question 6
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Lactose is made from linking galactose and glucose. When this happens,.
Gas is eliminated An anomeric carbon is formed on carbon- Water is released An epimer is formed An aldose is formed
WATER IS RELEASED
Amylose and amylopectin are both polymers of:
A) α-D-glucose
B) β-D-glucose
C) Galactose
D) Idose
E) Maltose
A) α-D-glucose
Question 9
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Anomers
Aldoses Ketoses Epimers Pentoses EPIMERS
Which arrow correctly identifies the atom that will become the anomeric carbon?
Question 10
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A
Based on the form of the cyclic sugar below in a Haworth projection, which Fischerprojection formula could have formed this structure?
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Question 13
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B) α1 →β
C) 1, 4
D) α1 → 6
E) β1 → 6
D) α1 → 6
Which statement about cellulose is true?
Cellulose is the primary storage polysaccharide of animal cells Cellulose is a highly branched polysaccharide Cellulose is a homopolysaccharide The glucose residues of cellulose contain the same configuration as the glucose residues of amylose Cellulose is an anomer of chitin
CELLULOSE IS A HOMOPOLYSACCHARIDE
The polysaccharide cellulose is most chemically similar to:
Glycogen Dextrose Glycogen Chitin Starch
Question 14
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Question 15
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Question 16
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CHITIN
Which of the following is the most common monosaccharide on earth?
Ribose Cellulose Chitin Sucrose Glucose
GLUCOSE
The “D” in the D-carbohydrates stands for:
Derivation Double Disaccharide 3- dimensional Dextrorotatory
DEXTROROTATORY
Which compound does not fit the formal definition of a carbohydrate?
A. C 6 H 12 O 6
Question 18
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A B C D E C
What is the configuration of the following compound?
A) α
B) β
C) D
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Question 20
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Question 21
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D) L
E) Both A and C
D
Table sugar is also known as:
Sucrose Dextrose Glucose Galactose Glycogen SUCROSE
Amylopectin has α1 → 6 branching about every residues.
1 to 10 8 to 12 10 to 30 24 to 30 No branching 24 TO 30
What element besides C, H, and O is found in the chitin?
Br N P
Question 26
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Question 24
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Question 25
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C) L and D
D) Helix and beta sheet
E) None of the above
B) α and β
Consider the functions of carbohydrates. Which of the following is not a function ofthese molecules?
Structure Energy storage Enzyme structure Both A and B Both A and C ENZYME STRUCTURE
The word saccharide means.
Sugar Carbohydrate Energy molecule Sucrose Starch SUGAR
(Short response) Table sugar dissolves easily in water. Given its structure, explain whythis is.
Sucrose contains -OH groups which can form hydrogen bonds with water. Thesenon- covalent interactions permit solubility by permitting carbohydrates to interact with water and become an aqueous solution.
Question 27
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(Short response) In the following structure:
Question 30
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(Short response) A) Which carbon in the following molecule determines if themolecule is D or L? Indicate the letter corresponding the correct carbon (“A”, “B”, etc.) and explain. B) Is this molecule D or L?
Carbon E. It is the penultimate carbon and tells the viewer if the sugar is D or L.This monosaccharide is D.
