MIC180 Chapter 5 Carbohydrates Part 1

X is a monosaccharide containing and aldehyde group. What is X?

• Polyhydroxyacetone

• Ketose

• Polyhydroxyketone

• Aldose

Monosaccharides containing 6-carbon backbone with an aldehyde group is called _______________.

• aldotriose

• aldohexoses

• ketopentoses

• ketohexoses

Y is a way of representing a cyclic (closed chain) carbohydrate. What is Y?

• Fischer Projection

• Hogwarts Projection

• Haworth Projection

• Howarth Projection

Figure shows members of the aldose family. All members of the same row are _________________ of each other.

• Enantiomers

• Epimers

• Anomers

• Diastreomers

L-Glucose and D-Glucose are examples of ______________.

• enantiomers

• epimers

• diastreomers

• anomers

D-Glucose is a _________ epimer of D-Galactose.

• C-3

• C-5

• C-2

• C-4

______________ is the infix for the 6-membered hemiacetal ring in Haworth projection.

• furan

• pyran

• pyrose

• furose

D-fructose (ketohexoses) cyclizes in the Haworth Projection to form _____________.

• D-fructofuranose

• D-fructopyranose

• L-fructofuranose

• L-fructopyranose

Picture shows an aldotriose undergoing a certain reaction with Tollen's reagent which converted the aldehyde group to carboxyl. What is the reaction?

• isomerisation

• Reduction

• condensation

• Oxidation

Select from the following epimers of D-Fructose (MORE THAN ONE ANSWER)

• D-Psicose

• L-Fructose

• D-Sorbose

• D-Tagatose