Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 47, Problem 9TYK
Summary Introduction
Introduction:
The digestion of food through the digestive tract is controlled by receptors and hormones secreted by the digestive organs. The hormones that play a major role are; gastrin, secretin, glucose-dependent insulinotropic peptide (GIP), and cholecystokinin (CCK).
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which of the following is true regarding digestion?
A.
The first segment of the alimentary tract is the duodenum.
B.
Amylase hydrolyzes starches into simple sugars.
C.
Bile hydrolyzes amylase into simple sugars.
D.
Trypsin and chymotrypsin degrade lipids into free fatty acids.
E.
All of the above answer choices correctly answer the question.
Which of the following is true about segmentation in the small intestine?a. It is a type of peristalsis.b. It moves chyme only from the duodenum to the ileum.c. Its frequency is the same in each intestinal segment.d. It is unaffected by cephalic phase stimuli.e. It produces a slow migration of chyme to the large intestine.
Which of the following is true about carbohydrate digestion?
A.
Cellulose and lignin found in plants are totally indigestible even with intestinal bacteria.
B.
The acidity of the stomach prevents chemical digestion of carbohydrates.
C.
Dextrin and maltose are the products of chemical digestion of starch by pancreatic amylase.
D.
Disaccharidases produced from the pancreas breaks down oligosaccharides in the intestines.
Chapter 47 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 47.1 - Prob. 1SBCh. 47.1 - Prob. 2SBCh. 47.1 - What is the difference between deposit feeders and...Ch. 47.2 - Prob. 1SBCh. 47.2 - Prob. 2SBCh. 47.3 - Prob. 1SBCh. 47.3 - Prob. 2SBCh. 47.3 - Prob. 3SBCh. 47.3 - Prob. 4SBCh. 47.4 - Prob. 1SB
Ch. 47.4 - Prob. 2SBCh. 47.5 - How are the different types of teeth used in...Ch. 47.5 - What roles do symbiotic microorganisms play in...Ch. 47 - Prob. 1TYKCh. 47 - Prob. 2TYKCh. 47 - The order of successive steps in digestion is: a....Ch. 47 - Prob. 4TYKCh. 47 - Prob. 5TYKCh. 47 - Prob. 6TYKCh. 47 - If the fat in whole milk is ingested: a. the...Ch. 47 - The role of the liver in digestion is to: a....Ch. 47 - Prob. 9TYKCh. 47 - Prob. 10TYKCh. 47 - Prob. 11TYKCh. 47 - Prob. 12TYKCh. 47 - Prob. 13TYKCh. 47 - Prob. 14TYKCh. 47 - Apply Evolutionary Thinking What is the advantage...Ch. 47 - The human AMY-1 gene encodes salivary amylase, an...Ch. 47 - Prob. 2ITDCh. 47 - Prob. 3ITD
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is true? a. The internal anal sphincter is made out of skeletal muscle. b. The defecation reflex can be affected by input from the cerebral cortex. c. Defecation is a complex function that requires coordinated involvement from the gastrointestinal and respiratory system. d. Abdominal muscle contraction decreases intra-abdominal pressure and expel feces more rapidly. e. All of the choices.arrow_forwardWhich of the following is an unregulated process in the digestive tract? a. secretion of cholecystokinin (CCK) by the duodenal mucosa b. absorption of amino acids across the epithelium of the small intestine c. release of bicarbonate ion (HCO3–) by pancreatic duct cells d. peristalsis in the stomacharrow_forwardWhich of the following statements about the pancreas is correct? Select one: A. Pancreatic duct cells are enzyme- producing cells. B. There are more exocrine cells than endocrine cells in the pancreas. C. Acinar cells are responsible for the production of bicarbonate ions. D. Pancreatic juice is produced by the islets of Langerhans. E. Trypsinogen in pancreatic juice can digest proteins into amino acids.arrow_forward
- It is occasionally necessary for a person to have their gallbladder surgically removed. How will such a person's digestive process be altered? A. Pepsinogen would not be converted into pepsin before entering the lumen of the stomach. B. The person would be unable to digest fats. C. Mucus would not protect the stomach lining. D. Water would not be extracted from forming feces. E. Bile would go directly from the liver to the duodenum.arrow_forwardWhich of the following statements regarding protein digestion is incorrect? A. The intestinal enzymes trypsin and chymotrypsin continue the chemical breakdown of polypeptides into oligopeptides. B. Chemical digestion of proteins is initiated in the stomach through the action of the enzyme pepsin. C. Mechanical digestion of proteins starts in the mouth through chewing. D. Di- and tripeptides enter the intestinal cells where they are broken down by peptidases into individual amino acids.arrow_forwardWhich of the following statements is true?a. Intracellular digestion commonly occurs in vertebrates.b. Absorption of nutrients always requires active transport.c. Alimentary canals have two openings, whereas gastrovascularcavities have only one.d. Extracellular, but not intracellular, digestion requires hydrolyticenzymes.e. Most minerals are absorbed by simple diffusion.arrow_forward
- The normal mechanism of defecation involves:A. Stretch receptors located in the duodenum and jejunum initiate a long-lasting reflex that relaxes the internal anal sphincter several hours after food initially passes from the stomach to the intestines.B. Stretch receptors located in the rectal wall initiate the defecation reflex inresponse to an incoming mass movement.C. The defecation reflex involves contraction of the rectal wall and simultaneous relaxation of the internal anal sphincter.D. Digestive fluids secreted from the pancreas and gall bladder contain enzymesthat act on the smooth muscle of the intestine, stimulating peristalsis.E. Conscious signals from the cortex will allow for relaxation of the external anal sphincter (when appropriate!).arrow_forwardWhen food distends the duodenum, the duodenum releases the hormone CCK. By what peripheral (non-CNS) mechanism does it increase satiety? a. CCK increases stomach contractions. b. CCK tightens the sphincter muscle between the stomach and the duodenum. c. CCK increases the ability of nutrients to enter cells. d. Cells in the hypothalamus release CCK as a neurotransmitter.arrow_forwardAll of the following are functions of the liver except the a. release of insulin. b. formation of plasma proteins (e.g., albumin). c. formation of LDL particles. d. elimination of bilirubin.arrow_forward
- During defecation, a. all of the choices are correct b. the external anal sphincter is consciously relaxed c. the internal anal sphincter relaxes d. stretch receptors in the rectal wall activate parasympathetic centers in the sacral region of the spinal cord e. stretch receptors in the rectal wall initiate a series of peristaltic contractions in the colon and rectumarrow_forwardA. What is/are the primary role(s) of the large intestine? a. to complete enzymatic digestion and store indigestible material b. to initiate enzymatic digestion of carbohydrates and to store water c. to absorb water from digested material, with essentially no digestive role of its own d. to secrete water into the material that is left over after all available nutrients have been absorbed e. to digest fats A. In the intestine most nutrients are absorbed regardless of whether the body has an immediate need or shortfall of them; ie there is little control over amounts taken up – which of the following does not follow this rule? a. absorption of sodium b. absorption of water c.absorption of iron d. absorption of fat soluble vitamins e. none of the above follow this rule – close control is exerted over all of themarrow_forwardDuodenal gland secretion prevents Select one: a. the release of insulin. b. peristalsis. c. irritation of the duodenal mucosa by acidic chyme and digestive enzymes. d. digestive enzyme release. e. release of bile from the liver.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Human digestive system - How it works! (Animation); Author: Thomas Schwenke;https://www.youtube.com/watch?v=X3TAROotFfM;License: Standard Youtube License