Podcast
Questions and Answers
Where does lipid digestion predominantly occur?
Where does lipid digestion predominantly occur?
- Small intestine (correct)
- Stomach
- Mouth
- Esophagus
What process enhances the rate of lipid digestion by dividing large droplets into small fat droplets?
What process enhances the rate of lipid digestion by dividing large droplets into small fat droplets?
- Coagulation
- Emulsification (correct)
- Condensation
- Agglomeration
What enables access to water-soluble lipase by attaching pancreatic lipase to fat droplets?
What enables access to water-soluble lipase by attaching pancreatic lipase to fat droplets?
- Gastric lipase
- Lingual lipase
- Colipase (correct)
- Bile salt
What is the role of emulsifying agents in lipid digestion?
What is the role of emulsifying agents in lipid digestion?
What characteristic allows emulsifying agents to associate with both fat and water?
What characteristic allows emulsifying agents to associate with both fat and water?
Which enzyme cleaves off two fatty acid chains during lipid digestion?
Which enzyme cleaves off two fatty acid chains during lipid digestion?
How is lactose broken down in the small intestine?
How is lactose broken down in the small intestine?
Which enzyme is responsible for breaking down sucrose in the small intestine?
Which enzyme is responsible for breaking down sucrose in the small intestine?
How are monosaccharides absorbed in the small intestine?
How are monosaccharides absorbed in the small intestine?
Which transporter is responsible for taking up fructose in the small intestine?
Which transporter is responsible for taking up fructose in the small intestine?
What is the role of endopeptidases in protein digestion?
What is the role of endopeptidases in protein digestion?
Which enzyme is responsible for cleaving peptide bonds to release single amino acids?
Which enzyme is responsible for cleaving peptide bonds to release single amino acids?
From which sources can heme iron be obtained for absorption in the body?
From which sources can heme iron be obtained for absorption in the body?
Where does the absorption of Ca2+ mainly occur in the small intestine?
Where does the absorption of Ca2+ mainly occur in the small intestine?
How are fat-soluble vitamins absorbed in the small intestines?
How are fat-soluble vitamins absorbed in the small intestines?
What is the role of intrinsic factor in the absorption of vitamin B12?
What is the role of intrinsic factor in the absorption of vitamin B12?
Which form of iron is mainly obtained from cereals, legumes, fruits, and vegetables for absorption?
Which form of iron is mainly obtained from cereals, legumes, fruits, and vegetables for absorption?
How are water-soluble vitamins like vitamin C and B complex mainly absorbed in the body?
How are water-soluble vitamins like vitamin C and B complex mainly absorbed in the body?
What is the major function of bile in the digestive system?
What is the major function of bile in the digestive system?
Which component of bile serves as a route of excretion for bilirubin?
Which component of bile serves as a route of excretion for bilirubin?
How do bile salts contribute to digestion and absorption in the body?
How do bile salts contribute to digestion and absorption in the body?
What is the main role of the smooth muscles in the gastrointestinal tract?
What is the main role of the smooth muscles in the gastrointestinal tract?
Which layer of smooth muscle is predominantly seen in the gastrointestinal tract?
Which layer of smooth muscle is predominantly seen in the gastrointestinal tract?
What is the primary function of bile pigments in the digestive system?
What is the primary function of bile pigments in the digestive system?
Which muscle is responsible for creating a more acute angle between the rectum and the anal canal?
Which muscle is responsible for creating a more acute angle between the rectum and the anal canal?
Which type of muscle is the internal anal sphincter?
Which type of muscle is the internal anal sphincter?
What happens to the puborectalis muscle during defecation?
What happens to the puborectalis muscle during defecation?
Which nerve innervates the external anal sphincter?
Which nerve innervates the external anal sphincter?
What triggers a reflexive contraction in the sigmoid colon and rectum?
What triggers a reflexive contraction in the sigmoid colon and rectum?
What does the defecation reflex trigger?
What does the defecation reflex trigger?
