Question

Match the following substance involved in organic molecule digestion with its description: Sucrase, lactase, and maltase.

a) Breaks down proteins into amino acids
b) Breaks down lipids into fatty acids and glycerol
c) Breaks down carbohydrates into sugars
d) Emulsifies fats

Answer 1

Sucrase, lactase, and maltase are enzymes that break down carbohydrates into sugars during digestion, which include the splitting of sucrose, lactose, and maltose into their monosaccharide components, respectively.

Step-by-step explanation:

The student is seeking information about the functions of three enzymes involved in the digestion of carbohydrates: sucrase, lactase, and maltase. To match the substances with their descriptions:

• Sucrase is the enzyme that breaks down sucrose into glucose and fructose, matching it with the description that it 'breaks down carbohydrates into sugars'.
• Lactase is the enzyme that breaks down lactose into glucose and galactose, also fitting the description of an enzyme that 'breaks down carbohydrates into sugars'.
• Maltase breaks down maltose into two glucose molecules, aligning with the same description of 'breaks down carbohydrates into sugars'.

These enzymes are essential for the complete digestion of carbohydrates to produce monosaccharides that can be absorbed by the intestinal epithelium into the bloodstream for transport to cells throughout the body.