Understanding Carbohydrates

What are carbohydrates primarily used for?

• DNA replication

• Energy

• Structural support

• Enzyme activity

Which of the following is NOT a class of molecules used for energy?

• Fats

• Nucleic acids

• Proteins

• Carbohydrates

What functional groups do carbohydrates contain?

• Sulfhydryl groups

• Phosphate groups

• Amino groups

• Carbonyl and hydroxyl groups

What is the smallest unit of a carbohydrate?

• Monosaccharide

• Oligosaccharide

• Disaccharide

• Polysaccharide

Which of the following is a use of carbohydrates NOT mentioned in the text?

• Source of energy

• Providing clothing

• DNA structure

• Shelter

What does a disaccharide yield upon hydrolysis?

• Two polysaccharides

• Two monosaccharides

• One monosaccharide

• One oligosaccharide

Which of the following sugars is a pentose?

• Galactose

• Fructose

• Glucose

• Ribose

What is glucose classified as?

• An oligosaccharide

• A disaccharide

• An aldose sugar

• A ketose sugar

Which of the following is NOT a polysaccharide?

• Amylopectin

• Glycogen

• Cellulose

• Sucrose

What is the main sugar used by the human body?

• Glucose

• Sucrose

• Lactose

• Fructose