Which one of the following features does NOT make HDL a 'good' lipoprotein. It acts as an apolipoprotein reservoir. It transfers cholesterol from VLDL and LDL into the liver. It picks up cholesterol from extra-hepatic tissues and brings it back to the liver. It acts as a cholesterol store for tissues that need cholesterol to function.
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- A patient is brought to the emergency department due to acute pain, nausea, and vomiting. Computed tomography indicates acute pancreatitis that leads to an increased activation of trypsin. Which of the following is most likely activated in this condition? Pancreatic lipase Lysophospholipase Gastric lipase ColipaseWhich of the following statements is not correct: stomach cells are protected from the acid by mucus digestive enzymes arrive into the duodenum through a duct coming from the accessory organs sphincters allow food to quickly travel through the digestive tract.. lipids are absorbed into the lymphatic capillaries known as lactealsfat molecules that have been absorbed from the digestive tract first enter the blood at: at capillaries lining the stomach wall at capillaries surrounding lacteals in the intestinal villi at capillaries near the basal membrane of the intestinal mucosa at the right and left subclavian veins
- Lipid absorption involves hydrolysis of dietary fat in the lumen of the intestine followed by the uptake of hydrolyzed products by enterocytes. True FalseWhich of the following statements is not true about elimination of wastes from the body? Conscious opening of the external sphincter and smooth muscle contraction leads to the movement of the feces out of the alimentary canal. In the resting state the internal sphincter is relaxed while the external sphincter is contracted. Both sphincters must be relaxed in order for feces to pass out of the body. As the rectum fills it stimulates the internal sphincter to relax and the external sphincter to contract.A teenage boy presents with moderate to severe epigastric pain. Physical examination reveals extensive eruptive xanthomas and hepatosplenomegaly. A blood sample reveals milky plasma. Which of the following is the most likely lipoprotein to be elevated in this patient's plasma? A Chylomicrons B Chylomicron remnants HDL D IDL E LDL
- Which of the following is NOT true regarding the absorption of fat-soluble vitamins? Absorption occurs in the small intestine. Fat-soluble vitamins are incorporated into chylomicrons and transported into the lymph. A low-fat meal has no effect on fat-soluble vitamin absorption. Bile is necessary.Which of the following is not one of the major functions of the liver? produce bile salts to emulsify fats break down old red blood cells produce blood plasma proteins like albumin and fibrinogen maintain blood glucose levels through the release of insulin and glucagon produce urea from amino acids and ammoniaWhich of the following are absorbed into epithelial cells of the intestinal villi, but not into the blood? Amino Acids Dipeptides Tripeptides Both dipeptides and Tripeptides Amino Acids and Tripeptides
- Which of the following would most likely be found in the esophagus of a patient suffering from gastroesophageal reflux disease? Chymotrypsin Pepsin TrypsinBicarbonate is Multiple Choice secreted into the lumen by gastric epithelial cells and into the interstitial fluid by pancreatic duct cells. secreted into the lumen by pancreatic acinar (exocrine) cells, and into the interstitial fluid by pancreatic duct cells. secreted into the lumen by pancreatic duct cells, and into the interstitial fluid by pancreatic acinar (exocrine) cels. secreted into the interstitial fluid by gastric epithelial cells, and into the lumen by pancreatic duct cells. secreted into the lumen by both gastric epithelial cells and pancreatic duct cells.The patient has a delayed outflow of bile from the gallbladder. What may this condition lead to? Emulsification would be correct. Chylomicrons wouldn't be able to function normally. Micelles would be formed correctly. Bile salts wouldn't be formed from cholesterol. Bile salts wouldn't be able to function normally.