ANIMAL PHYSIOLOGY
DIGESTION IN HUMANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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digests fats into fatty acids and glycerol
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breaks large pieces of fat into smaller pieces, but does NOT digest it
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causes fat to gather into one large ball of fat
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changes the active site of lipase
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Detailed explanation-1: -When bile enters the small intestine, it will mix with the fat globules and will cause them to break down into smaller units called emulsion droplets. This process is called emulsification. Emulsification greatly increases the surface area of the fat on which the lipase can actually act on.
Detailed explanation-2: -Emulsification: In the small intestine lipids are emulsified by bile salts. Bile salts (bile salts = conjugation of bile acids with taurine or glycine) are polar and water soluble and function as detergents whereby they emulsifies larger fats into smaller droplets.
Detailed explanation-3: -The liver makes bile, which helps the body absorb fat. Bile is stored in the gallbladder until it is needed. The pancreas makes enzymes that help digest proteins, fats, and carbs.
Detailed explanation-4: -One of bile’s jobs is to emulsify fats, meaning it enables fat and water to mix. Bile contains molecules that are partly attracted to fat and partly attracted to water. These molecules draw fat and water together by sandwiching themselves in between the two.