EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Textbook Question
Chapter 47, Problem 2A
The primary function of the large intestine is to concentrate wastes into solid form (feces) for release from the body. How does it accomplish this?
a. By adding additional cells from the mucosal layer
b. By absorbing water
c. By releasing salt
d. All of these are methods used by the large intestine.
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Chapter 47 Solutions
EBK BIOLOGY
Ch. 47 - How is the digestion of fats different from that...Ch. 47 - Although the stomach is normally thought of as the...Ch. 47 - After being absorbed through the intestinal...Ch. 47 - Which of these pairings is incorrect? a. Fat...Ch. 47 - Intestinal microorganisms aid digestion and...Ch. 47 - Prob. 6UCh. 47 - Which of the following represents the action of...Ch. 47 - Prob. 1ACh. 47 - The primary function of the large intestine is to...Ch. 47 - Inactive forms of some molecules are secreted a....
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- Which 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_forwardHow can the stomach assist the immune system?a. by maintaing a constancy of nutrient concentrationb. by breaking large, complex food substances into simpler nutrients to be absorbed c. by destroying the potentially harmful bacteria because of its acidity d. all of these are contributory factorsarrow_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_forward
- Brunner'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_forwardWhere does the food you eat go?a. It goes through the cystic duct, to the common bile duct, and then to the duodenum.b. It goes through the pyloric valve before the cardiac sphincter.c. It goes through the ileocecal valve into the large intestine.d. It goes through the duodenum, to the ileum, and then to the jejunum.e. It goes through the pancreatic duct.arrow_forwardWhat happens in the colon?a. Constipation results if the colon does its job too well.b. The colon absorbs all nutrients of chemical digestion.c. Materials move through the cecum, ascending colon, descending colon, transverse colon, sigmoid colon,and rectum, in that order.d. The colon absorbs vitamin K.e. The colon absorbs water to form feces.arrow_forward
- Which 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_forwardWhy doesn’t the stomach digest itself?a. The stomach wall is not composed of protein, so it is not affectedby proteolytic enzymes.b. The digestive enzymes of the stomach are not strong enough todigest the stomach wall.c. The lining of the stomach wall has a protective layer of epithelial cells.d. The stomach wall is protected by large amounts of mucus.arrow_forwardExplain the process of digestion in ruminants. How do ruminants digest their food in two stepsarrow_forward
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