Question

Lactose can be a nutrient source for bacteria, it is a _____________________

• A. monosaccharide
• B. lipid
• C. disaccharide
• D. polysaccharide

Answer 1

Answer:

C. disaccharide

• Lactose is a disaccharide comprised of glucose and galactose.

• Oxidation of this disaccharide can provide a bacterial cell with metabolic intermediates and energy.