MODULE 7.1: Carbohydrates

What is the most abundant class of bioorganic molecules on planet Earth?

• Proteins

• Nucleic Acids

• Lipids

• Carbohydrates

What is the process by which green plants produce carbohydrates?

• Respiration

• Fermentation

• Oxidation

• Photosynthesis

Which functional groups are present in carbohydrate molecules?

• Carboxyl group and Amino group

• Hydroxyl group and Carbonyl group

• Methyl group and Aldehyde group

• Phosphate group and Sulfhydryl group

What is the main function of cellulose in plants?

• Energy storage

• Structural support

• Genetic material

• Cellular communication

Which carbohydrate is a primary source of food energy for human beings?

• Starch

• Maltose

• Lactose

• Sucrose

What is the main function of carbohydrate oxidation in the human body?

• Stores short-term energy reserve

• Supplies carbon atoms for synthesis

• Forms part of the structural framework of DNA and RNA

• Provides energy

Which classification of carbohydrates consists of many monosaccharide units?

• Oligosaccharides

• Monosaccharides

• Disaccharides

• Polysaccharides

What is the general formula for monosaccharides?

• CnH2nOn, where n varies from 3 to 8

• CnH2n-2On, where n varies from 5 to 10

• CnH2n+1On, where n varies from 2 to 7

• CnH2n-1On, where n varies from 4 to 9

What is the result of complete hydrolysis of oligosaccharides?

• Produces one monosaccharide

• Produces two monosaccharides

• Produces several monosaccharides

• Produces no monosaccharides

What is the main component of the paper on which our biochemistry book is printed?

• Starch

• Sucrose

• Cellulose

• Lactose