Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 23, Problem 29RQ
Where does the chemical digestion of starch begin?
- mouth
- esophagus
- stomach
- small intestine
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Where does the partly-digested food (in liquid form) go after it leaves the stomach?
The gullet
The appendix
The small intestine
The large intestine
Where does chemical digestion begin? Where in the digestive tract does most of the chemical digestion take place?
Where does absorption begin? Where in the digestive tract does most of the absorption take place?
Where 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 intestine
Chapter 23 Solutions
Anatomy & Physiology
Ch. 23 - By clicking on this link...Ch. 23 - Visit this site...Ch. 23 - Watch this animation...Ch. 23 - Watch this animation...Ch. 23 - Watch this animation...Ch. 23 - By watching this animation...Ch. 23 - Watch this video...Ch. 23 - Which of these organs is not considered an...Ch. 23 - Which of the following organs is supported by a...Ch. 23 - Which of the following membranes covers the...
Ch. 23 - Which of these processes occurs in the mouth?...Ch. 23 - Which of these processes occurs throughout most of...Ch. 23 - Which of the following stimuli activates sensors...Ch. 23 - Which of these statements about reflexes in the GI...Ch. 23 - Which of these ingredients in saliva is...Ch. 23 - Which of these statements about the pharynx is...Ch. 23 - Which structure is located where the esophagus...Ch. 23 - Which phase of deglutition involves contraction of...Ch. 23 - Which of these cells secrete hormones? parietal...Ch. 23 - Where does the majority of chemical digestion in...Ch. 23 - During gastric emptying, chyme is released into...Ch. 23 - Parietal cells secrete ________. gastrin...Ch. 23 - In which pail of the alimentary canal does most...Ch. 23 - Which of these is most associated with villi?...Ch. 23 - What is the roLe of the small intestines MALT?...Ch. 23 - Which part of the large intestine attaches to the...Ch. 23 - Which of these statements about bile is true?...Ch. 23 - Pancreatic juice ________. deactivates bile. is...Ch. 23 - Where does the chemical digestion of starch begin?...Ch. 23 - Which of these is involved in the chemical...Ch. 23 - Where are most fat-digesting enzymes produced?...Ch. 23 - Which of these nutrients is absorbed mainly in the...Ch. 23 - Explain how the enteric nervous system supports...Ch. 23 - What layer of the alimentary canal tissue is...Ch. 23 - Offer a theory to explain why segmentation occurs...Ch. 23 - It has been several hours since you last ate....Ch. 23 - The composition of saliva varies from gland to...Ch. 23 - During a hockey game, the puck hits a player in...Ch. 23 - What prevents swallowed food from entering the...Ch. 23 - Explain the mechanism responsible for...Ch. 23 - Describe the three processes involved in the...Ch. 23 - Explain how the stomach is protected from self...Ch. 23 - Describe unique anatomical features that enable...Ch. 23 - Explain how nutrients absorbed in the small...Ch. 23 - Why is it important that chyme from the stomach is...Ch. 23 - Describe three of the differences between the...Ch. 23 - Why does the pancreas secrete some enzymes in...Ch. 23 - Describe the location of hepatocytes in the liver...Ch. 23 - Explain the role of bile salts and lecithin in the...Ch. 23 - How is vitamin B12 absorbed?
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Similar questions
- Digestion is completed and products are absorbed in the _________. a. mouth b. stomach c. small intestine d. large intestinearrow_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_forwardWhat are the main functions of the stomach? What roles do enzymes and hormones play?arrow_forward
- Figure 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_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_forwardHow does the digestion and absorption of fat differ from that of carbohydrates? Absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood. Fat absorption occurs in the stomach, whereas carbohydrates are absorbed from the small intestine. Only fat must be worked on by bacteria in the large intestine before it can be absorbed. Carbohydrates need to be emulsified before they can be digested, whereas fats do not. Processing of fat does not require any digestive enzymes, whereas the processing of carbohydrates does.arrow_forward
- The digestive system breaks down food into:a. nutrientsb. amylasec. salivad. sphinctersarrow_forwardWhere does chemical digestion of carbohydrates begin? In the duodenum In the duodenum O In the stomach In the mouth In the large intestine Question 22 Which part of the alimentary canal is lined by a stratified squamous epithelium? small intestine stomach O ascending colon O nasopharynx O laryngopharynxarrow_forwardWhat differentiates DIGESTION differ from METABOLISM?arrow_forward
- Where does food pass through between the mouth and the stomach? The gullet The rectum The small intestine The large intestinearrow_forwardWhich of the following statements regarding digestive systems are correct? Glucose monomers are linked together by alpha 1-4 glycosidic bonds in both starch and cellulose. Gastrin is produced by exocrine cells of the gastric glands. Pepsinogen and gastric acid (HCl) are both secreted into the lumen of the stomach.arrow_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_forward
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