Download CHEM 210 Module 4 Exam Questions and Answers and more Exams Chemistry in PDF only on Docsity!
Question 2
3 / 3 pts
CHEM 210 Module 4 Exam Questions and
Answers
Question 1
3 / 3 pts Which of the following monosaccharides is a ketose? Dihydroxyaceton e 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
Question 4
3 / 3 pts D) -D-glucose and -D-glucose E) α-D-glucose and β-L-glucose D) -D-glucose and -D-glucose
Question 6
3 / 3 pts
Question 7
3 / 3 pts
Question 8
3/ 3 pts Which statement about starch and glycogen is false? A) Both have β-D-glucose monomers B) Both starch and glycogen are energy storage polysaccharides C) Both are homopolymers of glucose D) Glycogen is more extensively branched than starch E) Both have O-glycosidic linkages A) Both have β-D-glucose monomers Which monosaccharide is not a six-carbon monosaccharide? Fructose Ribose Mannose Galactos e Glucose RIBOSE The two monosaccharides shown below could best be described as:
Question 10
0 / 3 pts A Based on the form of the cyclic sugar below in a Haworth projection, which Fischer projection formula could have formed this structure?
Question 11
3 / 3 pts B The following monosaccharides are covalently bonded. What type of bond unites them? A) α 1 → 4
Dextrose Glycoge n Chitin Starch
Question 14
3 / 3 pts
Question 15
3 / 3 pts
CHITIN
Which of the following is the most common monosaccharide on earth? Ribose Cellulos e Chitin Sucrose Glucose GLUCOSE The “D” in the D-carbohydrates stands for: Derivation Double Disaccharide 3- dimensional Dextrorotato ry DEXTROROTATORY
Question 17
3 / 3 pts
B. C 7 H 10 O 7
C. C 8 H 16 O 8
D. C 3 H 6 O 3
E. C 4 H 8 O 4
B. C 7 H 10 O 7
Which letter represents the hemiacetal bond?
C) D
Question 19
3 / 3 pts
Question 20
3 / 3 pts
Question 21
3 / 3 pts
D) L
E) Both A and C D Table sugar is also known as: Sucrose Dextrose Glucose Galactos e Glycogen SUCROSE Amylopectin has α 1 → 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? B
Question 22
3 / 3 pts
Question 23
3 / 3 pts
S
Cl N Some carbohydrates form a(n) structure, which resembles a structure in proteins. A) α form B) β-turn C) βeta-sheet D) D-configuration E) α-helix E) α-helix The equilibrium between structures is called mutarotation.
A) Anomer and epimer B) α and β
