Portage Learning Chem 210 - Module 4 exam.

Portage Learning Chem 210 - Module 4 exam.
Question 1
pts

Which of the following monosaccharides is a ketose?




Dihydroxyaceto
ne Galactose
Glucose
Glyceraldehyde
Idose
Dihydroxyacetone
Question 2
pts

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 4
pts

,Lactose is made from linking galactose and glucose. When this happens, .

Gas is eliminated
An anomeric carbon is formed on
carbon-1 Water is released
An epimer is
formed An aldose
is formed
WATER IS RELEASED

Question 5
pts


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 6
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


Question 7
pts

Which monosaccharide is not a six-carbon monosaccharide?

Fructose
Ribose
Mannose
Galactos
e
Glucose
RIBOSE
Question 8
3/ 3 pts


The two monosaccharides shown below could best be described as: