Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 34, Problem 19RQ
In the famous conditioning experiment, Pavlov demonstrated that his dogs started drooling in response to a bell sounding. What part of the digestive process did he stimulate?
- cephalic phase
- gastric phase
- intestinal phase
- elimination phase
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Digestion takes place in a long tube-like canal called the alimentary canal, or the digestive tract. Food travels through these organs in the following order:
1)
Mouth, gullet, stomach, small intestine,large intestine and rectum
2)
Mouth, oesophagus, stomach, large intestine,small intestine and rectum
3)
Mouth, stomach, oesophagus, small intestine,large intestine and rectum
4)
Mouth, stomach, gullet, small intestine,large intestine and rectum
Complete this diagram of one of the first steps in digestion.
Note: your entries should be the name of a class of molecules important in biochemistry.
pancreatic lipase
X
The innermost layer of the digestive tube is the _____.
Chapter 34 Solutions
Biology 2e
Ch. 34 - Figure 34.11 Which of the following statements...Ch. 34 - Figure 34.12 Which of the following statements...Ch. 34 - Figure 34.19 Which of the following statements...Ch. 34 - Which of the following is a pseudo-ruminant? cow...Ch. 34 - Which of the following statements is untrue?...Ch. 34 - The acidic nature of chyme is neutralized by...Ch. 34 - The digestive juices from the liver are delivered...Ch. 34 - A scientist dissects a new species of animal. If...Ch. 34 - Which of the following statements is not true?...Ch. 34 - Which of the following is a water-soluble vitamin?...
Ch. 34 - What is the primary fuel for the body?...Ch. 34 - Excess glucose is stored as fat glucagon glycogen...Ch. 34 - Many distance runners “carb load” the day before a...Ch. 34 - Where does the majority of protein digestion take...Ch. 34 - Lipases are enzymes that breakdown disaccharides...Ch. 34 - Which of the following conditions is most likely...Ch. 34 - Which hormone controls the release of bile from...Ch. 34 - Which hormone stops acid secretion in the stomach?...Ch. 34 - In the famous conditioning experiment, Pavlov...Ch. 34 - How does the polygastric digestive system aid in...Ch. 34 - How do birds digest their food in the absence of...Ch. 34 - What is the role of the accessory organs in...Ch. 34 - Explain how the villi and microvilli aid in...Ch. 34 - Name two components of the digestive system that...Ch. 34 - What are essential nutrients?Ch. 34 - What is the role of minerals in maintaining good...Ch. 34 - Discuss why obesity is agrowing epidemic.Ch. 34 - There are several nations where mal nourishment is...Ch. 34 - Generally describe bow a piece of bread can power...Ch. 34 - In the 1990s fat-free foods became popular among...Ch. 34 - Explain why some dietary lipid is a necessary part...Ch. 34 - The gut microbiome (the bacterial colonies in the...Ch. 34 - Many mammals become ill if they drink milk as...Ch. 34 - Describe how hormones regulate digestionCh. 34 - Describe one or more scenarios where loss of...Ch. 34 - A scientist is studying a model that has a...
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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
- Figure 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_forwardList the organs and accessory organs of the digestive system. On a separate piece of paper, list the main functions of each organ.arrow_forwardFigure 34.11 Which of the following statements about the digestive system is false? Chyme is a mixture of food and digestive juices that is produced in the stomach. Food enters the large intestine before the small intestine. In the small intestine, chyme mixes with bile, which emulsifies fats. The stomach is separated from the small intestine by the pylloric sphincter.arrow_forward
- Figure 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_forwardThere 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_forwardFrank is learning about digestion. He asks, "Why doesn't the pepsin from the stomach digest the protein in the walls of the small intestine?"arrow_forward
- To 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_forwardDIGESTIVE PROCESSES Match each description to a digestive process. involves opening of the anal sphincters COPY & PASTE peristalsis food enters the mouth DEFECATION involves the breakdown of macromolecules by enzymes elimination of PROPULSION chewing indigestible waste MECHANICALI DIGESTION INGESTION alcohol and lipid soluble drugs leave stomach most nutrients enter bloodstream in small intestine swallowing ABSORPTION stomach churning dissolves food into smaller particles CHEMICAL Pepsin breaks down proteins DIGESTION DRAG O 6 Toolarrow_forwardWhile most of the digestive tract has two layers of muscle in the muscularis externa (longitudinal and circular), the stomach has a third oblique layer. Based on what you know about the role of the stomach in both mechanical and chemical digestion, why do you think the stomach has this third layer?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_forwardWhere does final digestion of food and absorption of nutrients occur in the gastrointestinal tract? Descending colon of the large intestine lower stomach Duodenum of the small intestine Ascending colon of the large intestinearrow_forwardWhich of the following is a true statement concerning this region of the digestive tract? 1. This region of the digestive tract is classified as intraperitoneal. 2. This region of the digestive tract is supplied by the superior mesenteric artery (demonstrating multiple arcades) 3. This region of the digestive tract functions in most of the enzymatic digestive activities and nutrient absorption. 4. This region of the digestive tract is supplied sympathetic innervation via the least splanchnic nerve. Choose from the following: (A) 1 and 2 (B) 1 and 3 (C) 2 and 3 (D) 1, 2, and 4 (E) 3 and 4arrow_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