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?




Dihydroxyacetone
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