Podcast
Questions and Answers
What is the primary reason the digestion of lipids presents a unique challenge?
What is the primary reason the digestion of lipids presents a unique challenge?
- Lipolytic enzymes are insoluble in water.
- Bile salts inhibit the action of lipases.
- Fats are insoluble in water, while lipolytic enzymes are water-soluble. (correct)
- Lipids are too small to be effectively digested.
What substance aids in the emulsification of fats in the gut?
What substance aids in the emulsification of fats in the gut?
- Intrinsic factor
- Amylase
- Bile salts (correct)
- Hydrochloric acid
Where is lingual lipase secreted?
Where is lingual lipase secreted?
- Dorsal surface of the tongue (correct)
- Stomach
- Pancreas
- Small intestine
Lingual lipase primarily acts on which already emulsified fats?
Lingual lipase primarily acts on which already emulsified fats?
What ion is required for the activity of gastric lipase?
What ion is required for the activity of gastric lipase?
How do fats influence gastric emptying?
How do fats influence gastric emptying?
What hormone is responsible for delaying gastric emptying due to the presence of fats?
What hormone is responsible for delaying gastric emptying due to the presence of fats?
Where does the major site of fat digestion occur?
Where does the major site of fat digestion occur?
What enzyme in pancreatic juice is primarily responsible for fat digestion?
What enzyme in pancreatic juice is primarily responsible for fat digestion?
What is produced after pancreatic lipase removes the first fatty acid from a triglyceride molecule?
What is produced after pancreatic lipase removes the first fatty acid from a triglyceride molecule?
Flashcards
Emulsification of Fats
Emulsification of Fats
Breaking large fat globules into smaller particles, increasing lipase interaction.
Lingual Lipase
Lingual Lipase
Enzyme secreted by the tongue that begins fat digestion in the mouth, primarily acting on emulsified fats.
Gastric Lipase
Gastric Lipase
Enzyme in gastric secretions that digests emulsified fats into fatty acids and glycerol, requiring calcium for activity.
Fats' Role in Satiety
Fats' Role in Satiety
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Pancreatic Lipase (Steapsin)
Pancreatic Lipase (Steapsin)
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Pancreatic Lipase Action
Pancreatic Lipase Action
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Triglyceride to Diglyceride
Triglyceride to Diglyceride
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Diglyceride to Monoglyceride
Diglyceride to Monoglyceride
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Isomerase Role
Isomerase Role
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Final Lipase Action
Final Lipase Action
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