Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 37, Problem 5TY
Summary Introduction
Introduction: The gastrointestinal tract is also known as the alimentary canal or gut. It is an organ system inside the humans and other animals that takes in food and digests it to absorb and assimilate the energy and nutrients. It expels the waste products as feces. The parts of this tract include the Mouth, esophagus, the stomach, and intestines.
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Which of the following statements concerning the large intestine is correct?
Group of answer choices
The ileocecal valve is the sphincter between the rectum and the anus
It is responsible for the absorption of most of the water in the gastrointestinal tract
The majority of nutrients are absorbed in the large intestines
The mutualistic bacteria in the large intestine may provide some additional vitamins
Which of the following is characteristic of the large intestine? It:
is longer than the small intestine
has rugae
contains microvilii
exhibits external muscular bands called taenia coli
Which of the following is NOT a regulatory mechanism for
digestion?
Only carbohydrates are digested in the oral cavity.
Hormones are secreted at various stages of digestion
pH of the digestive tract is altered by the release of
bicarbonates to the GI tract.
Enzyme activation is effected by autocatalysis of zymogens.
Cells and different organ systems are involved in the digestion
of foodstuffs.
Chapter 37 Solutions
Principles of Biology
Ch. 37.1 - Prob. 1TYKCh. 37.1 - Which statement is false? Water is an inorganic...Ch. 37.2 - Prob. 1CCCh. 37.2 - Prob. 1TYKCh. 37.3 - Prob. 1CCCh. 37.3 - Are the transport processes shown here, including...Ch. 37.3 - Prob. 2CCCh. 37.3 - Prob. 1TYKCh. 37.3 - Prob. 2TYKCh. 37.3 - Prob. 3TYK
Ch. 37.4 - During the absorptive state, an animal is fasting....Ch. 37.4 - Gluconeogenesis occurs when the liver synthesizes...Ch. 37.5 - Prob. 1CCCh. 37.5 - Prob. 1BCCh. 37.5 - Insulin primarily regulates blood glucose...Ch. 37.5 - Prob. 2CCCh. 37.5 - Prob. 2TYKCh. 37.6 - Prob. 1CCCh. 37.6 - Prob. 2CCCh. 37.6 - Prob. 1TYKCh. 37.6 - Prob. 2TYKCh. 37.7 - Prob. 1BCCh. 37.7 - Prob. 1TYKCh. 37.7 - Prob. 2TYKCh. 37.8 - Note that modem medical technology is using a...Ch. 37.8 - Prob. 1TYKCh. 37.8 - Hemodialysis is the treatment of choice for people...Ch. 37 - Prob. 1TYCh. 37 - Prob. 2TYCh. 37 - Prob. 3TYCh. 37 - Prob. 4TYCh. 37 - Prob. 5TYCh. 37 - Prob. 6TYCh. 37 - Prob. 7TYCh. 37 - Prob. 8TYCh. 37 - In the mammalian kidney, filtration is driven by...Ch. 37 - Which of the following cause(s) an increase in Na+...Ch. 37 - Prob. 1CCQCh. 37 - List and define the major processes involved in...Ch. 37 - Prob. 3CCQCh. 37 - Discuss the major ways in which glucose...Ch. 37 - Briefly discuss the parts mid functions of the...
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- Figure 34.12 Which of the following statements about the small intestine is false? Absorptive cells that line the small intestine have microvilli, small projections that increase surface area and aid in the absorption of food. The inside of the small intestine has many folds, called villi. Microvilli are lined with blood vessels as well as lymphatic vessels. The inside of the small intestine is called the lumen.arrow_forwardFigure 34.19 Which of the following statements about digestive processes is true? Amylase, maltaseT and lactase in the mouth digest carbohydrates. Trypsin and lipase in the stomach digest protein. Bile emulsifies lipids in the small intestine. No food is absorbed until the small intestine.arrow_forwardFigure 16.7 Which of the following statements about the digestive system is false? a. Chyme is a mixture of food and digestive juices that is produced in the stomach. b. Food enters the large intestine before the small intestine. c. In the small intestine, chyme mixes with bile, which emulsifies fats. d. The stomach is separated from the small intestine by the pyloric sphincter.arrow_forward
- List the organs and accessory organs of the digestive system. On a separate piece of paper, list the main functions of each organ.arrow_forwardUsing the black lines shown in Figure 11.27, name the types of nutrient molecules present at each site that are small enough to be absorbed across the small intestines lining. Figure 11.27 Fill in the blanks for substances that cross the lining of the small intestine.arrow_forwardThe salivary glands, pancreas, liver and gall bladder are considered accessory organs in the digestive system. They are not part of the digestive track but contribute to digestion. List the accessory organ associated with each the following functions. Produces bicarbonate to neutralize acidity as stomach contents enter the small intestine. Stores and releases bile to aid in breakdown of fats. Produces bile. Produces enzymes that enter the small intestine and aid in digestion. Moistens food Produces salivary amylase Produces hormones that regulate blood glucose levels. Stores glucose as glycogen (a polysaccharide)arrow_forward
- The cephalic phase of digestion: is an immediate response to stomach distension begins when someone smells and initially tastes food. is inhibited by cholecystokinin and secreted from the small intestine includes the initial steps of chemical protein digestion All of the abovearrow_forward22. Match the term with its descriptions: anal canal, appendix, buccal cavity, colon, esophagus, hard palate, haustra, ileocecal valve, microvilli, mouth, lymphoid nodules, pharynx, plicae, pyloric sphincter, rugae, small intestine, soft palate, stomach, tongue, villi. You may use al gl answers more than once. notiqiozds nietor nolo Finger-like extensions of the intestinal mucosa that increase the surface area: Villi nin Cua.couerby GM.AS (20jon ouo9i Collections of lymphatic tissue found in the submucosa of the small intestine; provide 92 fig tes protection against bacteria: 10 XL mo Folds of the small intestine wall that act like "speed bumps": aboud Two anatomical regions involved in the mechanical breakdown of food: mouth Organ that mixes and positions food Common passage for food and air: Phorynx Literally a food chute; has no digestive or absorptive role: Esophaqus and 2roo12: in the mouth: Tongue o el 22sq of yilidsni Folds of the stomach mucosa that allow stretching: Tril gio…arrow_forwardWhich of the following is NOT true regarding the absorption of fat-soluble vitamins? Absorption occurs in the small intestine. Fat-soluble vitamins are incorporated into chylomicrons and transported into the lymph. A low-fat meal has no effect on fat-soluble vitamin absorption. Bile is necessary.arrow_forward
- Match the following processes of the Digestive System to their specific description. Match each item to a choice: Choices: Defecation Digestion Secretion Mixing and propulsion Ingestion Absorption the process by which food material are mixed together and propelled within the GI tract. the process by which micro molecules from the process of digestion are absorbed within the small intestine. the chemical and mechanical process of degrading food material into small particles. the act of taking something (food, medicine, liquid, poison etc.) into the body through the mouth. the process by which undigested food particle are expelled out of the body. the process by which chemical enzymes are secreted by the Digestive System aiding Digestion.arrow_forwardTo increase the absorptive efficiency of the small intestine, the surface area of the mucosa is increased by the presence of folds in the wall called ___, and projections of the cell membrane called ___. Group of answer choices rugae : lacteals villi : microvilli microvilli : lacteals lacteals : rugaearrow_forward
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Human digestive system - How it works! (Animation); Author: Thomas Schwenke;https://www.youtube.com/watch?v=X3TAROotFfM;License: Standard Youtube License