M2 L3 (Part 1) : Biochemistry Lecture

What is the main difference between structural isomers and stereoisomers?

• Different carbon atom count

• Different order of atoms

• Different three-dimensional configurations

• Different functional groups

Which type of structural isomerism involves a different arrangement of the carbon chain?

• Functional group isomerism

• Skeletal isomerism

• Position isomerism

• Geometric isomerism

What is the purpose of a Fischer projection in drawing molecules?

• To specify the 3-D relationships

• To show the functional groups

• To indicate the carbon atom count

• To simplify stereochemistry representation

What do D and L sugars classify based on?

• The number of carbon atoms

• The functional group

• The stereochemistry of the chiral center

• The position of the hydroxyl group

What is the result of monosaccharides cyclizing?

• Formation of stereoisomers

• Formation of furanoses

• Formation of pyranoses

• Formation of anomers

Which type of ring is less likely in monosaccharides due to ring strain?

• Six-membered rings

• Five-membered rings

• Four-membered rings

• Seven-membered rings

What is the process where monosaccharides shift between alpha and beta forms?

• Polymerization

• Cyclization

• Mutarotation

• Isomerization

What do cyclic monosaccharides polymerize to form?

• Functional groups

• Polysaccharide chains

• Stereoisomers

• Aldoses

What is the purpose of Haworth projections in depicting cyclic sugars?

• To depict the ring structure

• To simplify stereochemistry representation

• To show the functional groups

• To indicate the carbon atom count

What do carbohydrates and sugars refer to?

• Different classes of molecules

• The same class of molecules

• Different functional groups

• Different carbon atom count