What is the role of bile acids in the digestion of lipids?
What will be an ideal response?
Answers will vary.
Bile emulsifies fats. That is, it breaks fat into many tiny droplets, called micelles, and forms a shell around the micelles that keeps the fat droplets suspended in the water-based intestinal contents. Emulsification increases the surface area of lipids and allows pancreatic lipase to efficiently break triglycerides into monoglycerides and free fatty acids.
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Lactose is not usually used in commercial enteral nutrition formulas because:
a. it is too sweet. b. it exerts too much osmotic pressure. c. lactose intolerance is common in critically ill patients. d. it interferes with drug absorption.
Which of the following conditions is a common sign or symptoms of untreated type 1 diabetes?
A. migraine headaches B. hyperglycemia C. diverticula D. stomach ulcers
The tissue layer of the GI tract containing the rich supply of blood vessels and lymphatic vessels is the:
1.mucosa. 2.muscularis. 3.serosa. 4.submucosa.
Rapid changes in infusion rates of a parenteral solution can cause:
a. fluctuations in blood glucose levels. b. diarrhea. c. obstructions. d. infection.