Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 22.6, Problem 22CYU
Two substances secreted by cells of the gastric glands are needed to produce the active protein-digesting enzyme pepsin. What are these substances and which cells secrete them?
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Two substances secreted by cells of the gastric glands are needed to produce the active protein-digesting enzyme pepsin. What are these substances and which cells secrete them?
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Chapter 22 Solutions
Anatomy & Physiology (6th Edition)
Ch. 22.1 - Name one organ of the alimentary canal found in...Ch. 22.1 - Prob. 2CYUCh. 22.1 - Prob. 3CYUCh. 22.2 - How does the location of the visceral peritoneum...Ch. 22.2 - Of the following organs, which is/are...Ch. 22.2 - Name the layers of the alimentary canal from the...Ch. 22.2 - What name is given to the venous portion of the...Ch. 22.2 - Prob. 8CYUCh. 22.3 - Prob. 9CYUCh. 22.3 - The term gut brain does not really mean there is a...
Ch. 22.3 - Jerry has been given a drug that inhibits...Ch. 22.4 - Which structure forms the roof of the mouth?Ch. 22.4 - Besides preparing food for swallowing, the tongue...Ch. 22.4 - Prob. 14CYUCh. 22.4 - Prob. 15CYUCh. 22.5 - To which two organ systems does the pharynx...Ch. 22.5 - How is the muscularis externa of the esophagus...Ch. 22.5 - What is the functional significance of the...Ch. 22.5 - What role does the tongue play in swallowing?Ch. 22.5 - How are the respiratory passages blocked during...Ch. 22.6 - Prob. 21CYUCh. 22.6 - Two substances secreted by cells of the gastric...Ch. 22.6 - Name the three phases of gastric secretion.Ch. 22.6 - How does the presence of food in the small...Ch. 22.7 - What is a portal triad?Ch. 22.7 - What is the importance of the enterohepatic...Ch. 22.7 - Prob. 27CYUCh. 22.7 - What is the makeup of the fluid in the pancreatic...Ch. 22.7 - Prob. 29CYUCh. 22.8 - Prob. 30CYUCh. 22.8 - What are brush border enzymes?Ch. 22.8 - Distension of the stomach and duodenal walls have...Ch. 22.8 - Prob. 33CYUCh. 22.8 - Prob. 34CYUCh. 22.9 - Name and briefly describe the types of motility...Ch. 22.9 - What is the result of stimulation of stretch...Ch. 22.9 - In what ways are enteric bacteria important to our...Ch. 22.10 - Prob. 38CYUCh. 22.10 - Prob. 39CYUCh. 22.11 - Prob. 40CYUCh. 22.11 - Prob. 41CYUCh. 22 - The peritoneal cavity (a) is the same thing as the...Ch. 22 - Prob. 2MCCh. 22 - Prob. 3MCCh. 22 - Carbohydrates are acted on by (a) peptidases,...Ch. 22 - The parasympathetic nervous system influences...Ch. 22 - The digestive juice product containing enzymes...Ch. 22 - Prob. 7MCCh. 22 - Someone has eaten a meal of buttered toast, cream,...Ch. 22 - The site of production of cholecystokinin is (a)...Ch. 22 - Prob. 10MCCh. 22 - The gallbladder (a) produces bile, (b) is attached...Ch. 22 - The sphincter between the stomach and duodenum is...Ch. 22 - The protein molecule will be digested by enzymes...Ch. 22 - The protein molecule must be digested before it...Ch. 22 - The products of protein digestion enter the...Ch. 22 - Before the blood carrying the products of protein...Ch. 22 - Having passed through the regulatory organ...Ch. 22 - Make a simple line drawing of the organs of the...Ch. 22 - Prob. 19SAQCh. 22 - Name the layers of the alimentary canal wall. Note...Ch. 22 - What is a mesentery? Mesocolon? Greater omentum?Ch. 22 - Prob. 22SAQCh. 22 - (a) Describe the boundaries of the oral cavity....Ch. 22 - Prob. 24SAQCh. 22 - Describe the two phases of swallowing, noting the...Ch. 22 - Describe the role of these cells found in gastric...Ch. 22 - Describe the regulation of the cephalic, gastric,...Ch. 22 - (a) What is the relationship between the cystic,...Ch. 22 - Prob. 29SAQCh. 22 - Indicate the function of the stellate macrophages...Ch. 22 - Prob. 31SAQCh. 22 - Prob. 32SAQCh. 22 - Prob. 1CCSCh. 22 - Remember Mr. Gutteman, the gentleman who was...
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- By what mechanism is pepsinogen converted to pepsin in the stomach?arrow_forwardFood digestion occurs in much the same way in all vertebrates and many invertebrates. Which describes this common process?arrow_forwardWhat is the specific role of pepsin and pancreatin in protein digestion? Where can these enzymes be found in the body?arrow_forward
- What are the enzymes that catalyze the digestion of proteins ?arrow_forwardWhich of the following is NOT an enzyme secreted into the small intestine as an aid to chemical digestion: A) Bile B) Lipase D) Amylasearrow_forwardSuppose you have a test tube containing olive oil and pancreatic lipase in a pH 7.0 buffer incubating at 37°C for 1 hour. a) Identify two different observations or measurements you can make in order to determine whether digestion of the oil occurred. b) Do you think digestion occurs under these conditions? What could have made digestion more efficient?arrow_forward
- There are several processes that take place from the moment food enters our mouth until it is completely digested and used for energy. Using approximately 400-500 words, describe in detail and in order of process the mechanical (stomach and intestine)and chemical (gastric acid and enzymes) digestion of eating a grilled chicken sandwich with mayonnaise, lettuce, and tomatoes. Note what role the pancreas, gallbladder, and liver play in digestion of the ingredients? From what ingredients is your body deriving its energy and how many basic calories from the macronutrients ingested? Include at least two scholarly references (using APA formatting and style) to guide your answers (note that you can use your textbook as one of your references).arrow_forwardWhere does the digestion of sucrose begin, and what is the reaction that occursarrow_forwardDuring the _____ phase of digestion, blood glucose levels drop and our body must depend on stored energy. The sympathetic nervous system directs the pancreas to release glucagon, which causes glycogen to be transformed back into glucose. Glucagon also causes stored fat and glycogen to be released into the bloodstream. A) fasting B) exhaustion C) resistencearrow_forward
- Chemically, Olestra is made of a six-carbon backbone and six fatty acid attachments. No nutrients are absorbed or processed by Olestra. In order to understand why olestra is not absorbed, you must first explain why. (b) How can olestra intake affect fat-soluble vitamin absorption?arrow_forwardMagnesium hydroxide and magnesium citrate function as mild laxatives when they reach the small intestine. Why do magnesium hydroxide and magnesium citrate, two very different substances, have the same effect in yoursmall intestine. (Hint: The contents of the small intestine are basic.)arrow_forwardIn the intestine, the triacylglycerols must be converted to fatty acids and glycerol by hydrolytic enzymes before transport into enterocytes. Afterward, fatty acids and glycerol are reconverted into triacylglycerols and then packaged into chylomicrons. Suggest why this energy-requiring process is used instead of a direct transport of triacylglycerols into enterocytes.arrow_forward
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