Biochem module 4 exam
Which of the following monosaccharides is a ketose?
Dihydroxyacetone
Galactose
Glucose
Glyceraldehyde
Idose - correct answer-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 - correct answer-They differ only in the confirmation about one
carbon atom
- correct answer-D.) alpha-D-glucose and beta-D-glucose
Lactose is made from linking galactose and glucose. When this happens, _____.
Gas is eliminated
An anomeric carbon is formed on carbon-1
Which of the following monosaccharides is a ketose?
Dihydroxyacetone
Galactose
Glucose
Glyceraldehyde
Idose - correct answer-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 - correct answer-They differ only in the confirmation about one
carbon atom
- correct answer-D.) alpha-D-glucose and beta-D-glucose
Lactose is made from linking galactose and glucose. When this happens, _____.
Gas is eliminated
An anomeric carbon is formed on carbon-1