Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 41, Problem 11TYK
Summary Introduction
Introduction: Digestion is defined as the breakdown of complex molecules into simple molecules by the involvement of chemical and mechanical process. Normally food when ingested undergoes several steps including ingestion, mechanical process of digestion, the chemical process of digestion, absorption, and defecation.
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The small intestine is specialized for absorption because it
a. is the last section of the digestive tract and retains food the longest.
b. has saclike extensions along its length that collect food.
c. has no outlet so food remains within it for longer periods of time.
d. has an extremely large surface area that allows extended exposure to food.
Which of these structures increase the mucosal surface of the smallintestine?a. circular folds d. length of the small intestineb. villi e. All of these are correct.c. microvilli
A. 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 them
Chapter 41 Solutions
Study Guide for Campbell Biology
Ch. 41 - How can vegetarians obtain all the essential amino...Ch. 41 - Prob. 2IQCh. 41 - Prob. 3IQCh. 41 - Prob. 4IQCh. 41 - Prob. 5IQCh. 41 - For each of the following molecules, describe...Ch. 41 - Prob. 7IQCh. 41 - Prob. 8IQCh. 41 - Label the indicated structures in the following...Ch. 41 - Prob. 1TYKM
Ch. 41 - Prob. 2TYKMCh. 41 - Prob. 3TYKMCh. 41 - Prob. 4TYKMCh. 41 - Prob. 5TYKMCh. 41 - Prob. 6TYKMCh. 41 - Prob. 7TYKMCh. 41 - Prob. 8TYKMCh. 41 - Prob. 1TYKCh. 41 - Prob. 2TYKCh. 41 - Prob. 3TYKCh. 41 - Prob. 4TYKCh. 41 - Substrate feeders such as earthworms a. eat mostly...Ch. 41 - Prob. 6TYKCh. 41 - Why does salivary amylase not hydrolyze starch in...Ch. 41 - What is the advantage of mechanical digestion of...Ch. 41 - Prob. 9TYKCh. 41 - Prob. 10TYKCh. 41 - Prob. 11TYKCh. 41 - Prob. 12TYKCh. 41 - Prob. 13TYKCh. 41 - Prob. 14TYKCh. 41 - Prob. 15TYKCh. 41 - Prob. 16TYKCh. 41 - Prob. 17TYKCh. 41 - Prob. 18TYK
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- Explain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardWhich 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.arrow_forwardWhich of the following lists structures in order from smallest to largest? a. small intestine, folds, microvilli, villi b. villi, microvilli, folds, small intestine c. microvilli, folds, villi, small intestine d. microvilli, villi, folds, small intestinearrow_forward
- Which of the following structures is more likely found in the duodenum only a. parietal cells cells b d B d. pepsin b. Brunner's glands e. (a, b) c. panetharrow_forwardBrunner's glands secrete an alkaline product that helps achieve optimal pH for the activity of pancreatic enzymes. Where are these glands located? A. At the base of villi throughout the small intestine B. In the epithelium of the ampulla of Vater C. In the mucosa and submucosa of the jejunum D. In the submucosa of the duodenum E. In the submucosa of the ileumarrow_forwardThe of the stomach are responsible for the formation of hydrochloric acid (HCI). a. chief cells b. parietal cells C. mucous cells d. G-cellsarrow_forward
- Which of the following best describe the function of goblet cells in the digestive tract? A. produce mucus that protects parts of the digestive organs from the effects of powerful enzymes needed for food digestion B. secrete buffers in order to keep the pH of the digestive tract close to neutral C. provide protection against invading bacteria and other disease-causing organisms that enter the digestive tract in food D. absorb nutrients from digested food and store them for future usearrow_forwardThere are two different kinds of secretions associated with the digestive system that needs to be understood to avoid confusion when describing how the digestive system functions. Which one of these secretions will be involved in the control of digestion through the blood? A.Endocrine B.Exocrinearrow_forwardIt 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_forward
- Cells of the liver that do away with any foreign material from the blood and are specialized phagocytic cells are called? A. Hepatic B. Kupffers C. Liver D. Lymph The folds of mucous membrane in the stomach are called: A. Fundus B. Pylorus C. Palate D. Rugaearrow_forwardAs you examine the small intestine from superior to inferior, you should notice that the diameter of the inside lumen of this organ A. Gets larger B. Stays the Same C. Gets smaller D. Changes, but is not visible without a microscope The enlarging or stretching of a vessel is called: A. Abduction B. Pronation C. Adduction D. Dilationarrow_forwardWhich area in the digestive system does not have mucosa associated lymphatic tissue a. Pharynx b. Distal small intestine c. Teeth d. Tonsilsarrow_forward
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