Bile breaks up lipid globules into smaller droplets and then disperses them. This process is called

• A. Digestion.
• B. Absorption.
• C. Emulsification.
• D. Hydrolysis.

Answer: (C)

Emulsification is the process at work here. Bile salts act as emulsifiers, surrounding large fat globules and breaking them into much smaller, dispersed droplets in the watery environment of the intestine. This physical dispersion dramatically increases the surface area of fat, making it much easier for digestive enzymes to act on the lipids later.

This step isn’t about breaking chemical bonds or absorbing the products yet. Hydrolysis would be the chemical breakdown of triglycerides into fatty acids and monoglycerides by lipases, which happens after emulsification. Absorption is the uptake of these products by intestinal cells, which comes after digestion and emulsification. Digestion is the broader process of breaking down food, but emulsification specifically refers to the dispersion of fat into smaller droplets by bile.