Question
Biology Question on Digestion and absorption
Emulsification of fat is carried out by
A
bile pigments
B
bile salts
C
HCl
D
pancreatic juice.
Answer
bile salts
Explanation
Solution
Bile contains no enzyme, and has no chemical action on-food. However, it has salts, namely, sodium glycocholate and sodium taurocholate. These salts reduce the surface tension of large fat droplets and break them into many small ones. This process is called emulsification. They also form thin coating around tiny fat droplets to keep them from coalescing. This increases lipase action on fats.