Multiple Choice
Which of the following carbohydrates is classified as a polysaccharide?
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4. Biomolecules
Carbohydrates
Multiple Choice
The enzyme lactase speeds up the breakdown of lactose into which two smaller monosaccharides?
A
Glucose and galactose
B
Fructose and maltose
C
Galactose and sucrose
D
Glucose and fructose
Verified step by step guidance1
Understand the role of lactase: Lactase is an enzyme that catalyzes the hydrolysis (breakdown) of lactose, a disaccharide, into its component monosaccharides.
Recall the structure of lactose: Lactose is composed of two monosaccharides, glucose and galactose, linked by a glycosidic bond.
Identify the products of lactase activity: When lactase acts on lactose, it breaks the glycosidic bond, resulting in the release of glucose and galactose.
Eliminate incorrect options: Fructose, maltose, and sucrose are not components of lactose, so options containing these are incorrect.
Confirm the correct answer: The two monosaccharides produced by lactase breaking down lactose are glucose and galactose.
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