Which substance produced by the liver breaks up fat particles?

Which substance produced by the liver breaks up fat particles?

• A. Bile
• B. Mucin
• C. Amylase
• D. Lipase

Answer: (A)

Bile from the liver emulsifies fats by acting like a detergent with bile salts that break large fat droplets into many tiny ones, increasing their surface area for digestion. This emulsification is the crucial first step before fat digestion by lipase, which is produced mainly by the pancreas. So the substance produced by the liver that breaks up fat particles is bile. Mucin provides lubrication, amylase digests starch, and lipase digests fats but is produced by the pancreas, not the liver, so they don’t perform this emulsification role.

Bile from the liver emulsifies fats by acting like a detergent with bile salts that break large fat droplets into many tiny ones, increasing their surface area for digestion. This emulsification is the crucial first step before fat digestion by lipase, which is produced mainly by the pancreas. So the substance produced by the liver that breaks up fat particles is bile. Mucin provides lubrication, amylase digests starch, and lipase digests fats but is produced by the pancreas, not the liver, so they don’t perform this emulsification role.