age 4a)pepsintrypsin breaks down dietary protelns and also activates the zymogen forms ofother digestive proteasesb)c)etrypsinogen, chymotrypsinogen,the pancreatic zymogens areprocarboxypeptidase, and proelastase; the gastric zymogen is pepsinogend)the mature, proteolytically active form of chymotrypsin consists of threepeptide chains, A, B, and C, thát are held together by disulfide bondsthe activation of chymotrypsin involves the conversion of chymotrypsinogen toe)the intermediate form a-chymotrypsin, which is then converted to the mature,fully active protease B-chymotrypsin

Enzymes are biological catalysts that help in catalyzing or speeding up biological reactions by…

Answered: ge 4 action. Which of the following is…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter16: The Digestive System

Section: Chapter Questions

Problem 4UC

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1.A patient with chronic pancreatitis and hence decreased secretory function of pancreas was prescribed an enzymatic drug «Enzystal» before each meal. Explain this prescription. For that: a)Name pansreatic enzymes, participating in digestion of carbohydrates, lipids and proteins. What is their pH optimum and how is it reached in duodenum? b) Draw the scheme representing the cascade of activation of pancreatic proteolytic enzymes. Indicate the mechanism ofactivation and its reversability c)Why are proteolytic enzymes secreted by pancreas in inactive form? d)What recommendations on diet can be given to this patient?
Describe protein digestion by location: mouth, stomach, small intestine, enterocyte, large intestine. Define zymogen/proenzyme. Describe each key enzyme in protein digestion (including how each are activated). Describe the function and importance of enteropeptidase. Describe the function and importance of trypsin. Know the difference between an endogenous and exogenous peptidase. Describe the functions of brush border peptidases and cytosolic peptidases. Describe absorption of peptides and absorption of amino acid (they are different). Describe different fates of amino acids once they are absorbed and released into circulation. Describe what can happen if protein is not absorbed properly.
a) What is the general function of all enzymes that are involved in the digestive process.b) Use the Table below to summarise the function of 6 named digestive enzymes that are either secreted from specific regions of the gastrointestinal system, or part of the intestinal brush border. Enzyme Site of secretion / Action Function (to include substrate and product formed)
In upper gastrointestinal bleeding, without knowing the cause or source of bleeding, why do we give proton pump inhibitors (PPIS, e.g. omeprazole)? What is the role of these, if the source of bleeding is not peptic or duodenal ulcer?
17A hiatal hernia that disrupts the functional relationship between a smooth muscle in the esophagus and that the stomach would be most likely to increase the frequency of? A) gastric reflux B) premature entry of food into that one C) excess secretion of Pepsinogen D) increase stomach pH E) retention of food in the stomach
State the role of pancreatic juice in digestion of proteins.
2) Which Statement is not correct regarding cholecystokinin? a) secrete by enteroendocrine cells of small intestine b) Fat and protein in duodenum stimulate its secretion c) stimulate release of bile from gallbladder d) increase motility of stomach
Blockage of the bile duct would be expected to affect Multiple Choice a) cellulose digestion. b) protein digestion. c) carbohydrate digestion. d) lipid digestion. e) nucleotide digestion.
Which medication is commonly administered to treat symptoms of gastroesophageal reflux disease (GERD) by coating the esophagus and reducing gastric acid secretion? a) Famotidine b) Sucralfate c) Esomeprazole d) Metoclopramide
6. a)List the four stages involved in digestion. b)List the four blood components, and the function of each one. c)What is the dierence between arteries and veins? d)What is(are) the health risk(s) associated with eating too much processed foods that are low in fiber?
What is the functional value of the microvilli in the absorptive cells of the small intestine?
State the importance of each of the following accessory structures of the digestive tract:a) Liver: b) Pancreas: c) Gallbladder:

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