BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 46, Problem 2U
Although the stomach is normally thought of as the major player in the digestive process, the bulk of chemical digestion actually occurs in the
a. mouth.
b. appendix.
c. duodenum.
d. large intestine.
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Although the stomach is normally thought of as the major player in the digestive process, the bulk of chemical digestion actually occurs in the
a. mouth.
b. appendix.
c. duodenum.
d. large intestine.
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 stomach
Digestive enzymes that chemically digest most of our ingested food are secreted by the
a. liver.
b. small intestine.
c. pancreas.
d. salivary glands.
Chapter 46 Solutions
BIOLOGY
Ch. 46.1 - Prob. 1LOCh. 46.1 - Prob. 2LOCh. 46.1 - Prob. 3LOCh. 46.2 - Prob. 1LOCh. 46.2 - Prob. 2LOCh. 46.3 - Prob. 1LOCh. 46.3 - Prob. 2LOCh. 46.4 - Prob. 1LOCh. 46.4 - Explain how absorbed nutrients move into the blood...Ch. 46.5 - Prob. 1LO
Ch. 46.5 - Prob. 2LOCh. 46.5 - Prob. 3LOCh. 46.6 - Prob. 1LOCh. 46.6 - Prob. 2LOCh. 46.7 - Prob. 1LOCh. 46.7 - Prob. 2LOCh. 46.7 - Prob. 3LOCh. 46.8 - Prob. 1LOCh. 46.8 - Describe how rumination works.Ch. 46.8 - Prob. 3LOCh. 46 - Prob. 1DACh. 46 - If you constructed a phylogeny using molecular...Ch. 46 - Prob. 1IQCh. 46 - Prob. 2IQCh. 46 - Prob. 3IQCh. 46 - Prob. 4IQCh. 46 - How is the digestion of fats different from that...Ch. 46 - Although the stomach is normally thought of as the...Ch. 46 - After being absorbed through the intestinal...Ch. 46 - Which of these pairings is incorrect? a. Fat...Ch. 46 - Intestinal microorganisms aid digestion and...Ch. 46 - Prob. 6UCh. 46 - Which of the following represents the action of...Ch. 46 - Prob. 1ACh. 46 - The primary function of the large intestine is to...Ch. 46 - Inactive forms of some molecules are secreted a....Ch. 46 - Prob. 4ACh. 46 - Many birds possess crops, although few mammals do....Ch. 46 - Suppose that you wanted to develop a new treatment...Ch. 46 - How could a drop in plasma proteins and a decrease...Ch. 46 - Unlike many cases of convergence (see section...Ch. 46 - Prob. 5S
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- The bile from the liver is delivered to the _______. a. stomach b. liver c. small intestine d. colonarrow_forwardExplain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardThe region of the digestive tract most responsible for absorption of nutrients is the: a. stomach b. small intestine c. large intestine d. liverarrow_forward
- It 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_forwardWhich of the following segments of the large intestine are not retroperitoneal: a. ascending colon O a b O C Od Oe b. transverse colon c. sigmoid colon d. descending colon e. (b, c)arrow_forwardWhich of the following are used for mechanical digestion? A. Pancreatic juice B. Saliva C. Bile D. Hydrochloric acid (HCI) E. All of the abovearrow_forward
- The normal mechanism of defecation involves:A. Stretch receptors located in the duodenum and jejunum initiate a long-lasting reflex that relaxes the internal anal sphincter several hours after food initially passes from the stomach to the intestines.B. Stretch receptors located in the rectal wall initiate the defecation reflex inresponse to an incoming mass movement.C. The defecation reflex involves contraction of the rectal wall and simultaneous relaxation of the internal anal sphincter.D. Digestive fluids secreted from the pancreas and gall bladder contain enzymesthat act on the smooth muscle of the intestine, stimulating peristalsis.E. Conscious signals from the cortex will allow for relaxation of the external anal sphincter (when appropriate!).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_forwardThe food coming out of the stomach is very acidic. It is neutralized and made somewhat alkaline by the action of buffers, especially the bicarbonate buffer, which is secreted in: A. Brunner’s glands in the duodenum B. pancreatic juices C. bile D. all of the abovearrow_forward
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