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Questions and Answers
Where are amino acids transported out of the enterocytes?
Where are amino acids transported out of the enterocytes?
- Mitochondria
- Basolateral borders (correct)
- Cytoplasm
- Apical borders
At what rate is absorption of amino acids in the duodenum and jejunum?
At what rate is absorption of amino acids in the duodenum and jejunum?
- Rapid (correct)
- Intermittent
- Slow
- Moderate
Where is there little absorption of larger peptides?
Where is there little absorption of larger peptides?
- Ileum (correct)
- Colon
- Jejunum
- Duodenum
What is the source of approximately 50% of the digested protein?
What is the source of approximately 50% of the digested protein?
Where does almost all of the protein in the stools come from?
Where does almost all of the protein in the stools come from?
What happens to undigested proteins in infants?
What happens to undigested proteins in infants?
Where does almost all iron absorption occur in humans?
Where does almost all iron absorption occur in humans?
Which protein facilitates basolateral transport of iron out of enterocytes?
Which protein facilitates basolateral transport of iron out of enterocytes?
What is the plasma iron level in men under normal conditions?
What is the plasma iron level in men under normal conditions?
Which protein converts Fe2+ to Fe3+ in the plasma?
Which protein converts Fe2+ to Fe3+ in the plasma?
What is the main function of apoferritin in the body?
What is the main function of apoferritin in the body?
Where does heme bind to initiate transport into enterocytes?
Where does heme bind to initiate transport into enterocytes?
What is the main function of cholesterol esterase?
What is the main function of cholesterol esterase?
How do fats in the small intestine become emulsified?
How do fats in the small intestine become emulsified?
What happens to lipids when bile acid concentration is high in the intestine?
What happens to lipids when bile acid concentration is high in the intestine?
Which components are generally found in the hydrophobic centers of micelles?
Which components are generally found in the hydrophobic centers of micelles?
How do lipids move to the brush border of mucosal cells for absorption?
How do lipids move to the brush border of mucosal cells for absorption?
What is the role of micellar formation in lipid digestion and absorption?
What is the role of micellar formation in lipid digestion and absorption?
What type of immunoglobulins are largely present in maternal colostrum?
What type of immunoglobulins are largely present in maternal colostrum?
How do protein antibodies in maternal colostrum enter the circulation of infants?
How do protein antibodies in maternal colostrum enter the circulation of infants?
What process is responsible for the absorption of intact proteins from the intestine?
What process is responsible for the absorption of intact proteins from the intestine?
What may provoke the formation of antibodies when foreign proteins enter the circulation?
What may provoke the formation of antibodies when foreign proteins enter the circulation?
What is a common factor in susceptibility to individual food allergies?
What is a common factor in susceptibility to individual food allergies?
Which of the following foods are mentioned as common offenders causing allergic responses?
Which of the following foods are mentioned as common offenders causing allergic responses?
How is glucose transported into the interstitium for absorption?
How is glucose transported into the interstitium for absorption?
What provides the energy for glucose transport into the enterocytes?
What provides the energy for glucose transport into the enterocytes?
What happens when the Na+/glucose cotransporter is congenitally defective?
What happens when the Na+/glucose cotransporter is congenitally defective?
Which transporter is responsible for transporting fructose into enterocytes?
Which transporter is responsible for transporting fructose into enterocytes?
What is the role of insulin in the intestinal transport of sugars?
What is the role of insulin in the intestinal transport of sugars?
Why is it important to promptly remove glucose and galactose from the diet in cases of a defective Na+/glucose cotransporter?
Why is it important to promptly remove glucose and galactose from the diet in cases of a defective Na+/glucose cotransporter?
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