Which nutrient absorption is aided by bile's emulsification of fats?

Which nutrient absorption is aided by bile's emulsification of fats?

• A. Proteins
• B. Carbohydrates
• C. Fats
• D. Nucleotides

Answer: (C)

Bile’s emulsification increases the surface area of fats, making it possible for pancreatic lipase to act much more efficiently. By breaking large fat droplets into many tiny ones, the enzyme has more contact with fat molecules, so fats are broken down into fatty acids and monoglycerides more quickly. These digestion products are then packaged into micelles and absorbed by the intestinal lining to form chylomicrons, enabling fat absorption. This process targets fats specifically, while proteins, carbohydrates, and nucleotides are digested and absorbed through different enzymes and pathways, so bile’s emulsification doesn’t aid their absorption.

Bile’s emulsification increases the surface area of fats, making it possible for pancreatic lipase to act much more efficiently. By breaking large fat droplets into many tiny ones, the enzyme has more contact with fat molecules, so fats are broken down into fatty acids and monoglycerides more quickly. These digestion products are then packaged into micelles and absorbed by the intestinal lining to form chylomicrons, enabling fat absorption. This process targets fats specifically, while proteins, carbohydrates, and nucleotides are digested and absorbed through different enzymes and pathways, so bile’s emulsification doesn’t aid their absorption.