BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 46, Problem 1U
How is the digestion of fats different from that of proteins and carbohydrates?
a. Fat digestion occurs in the small intestine, and the digestion of proteins and carbohydrates occurs in the stomach.
b. Fats are absorbed into cells as fatty acids and monoglycerides but are then modified for absorption; amino acids and glucose are notmodified further.
c. Fats enter the hepatic portal circulation, but digested proteins and carbohydrates enter the lymphatic system.
d. Digested fats are absorbed in the large intestine, and digested proteins and carbohydrates are absorbed in the small intestine.
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How is the digestion of fats different from that of proteins and carbohydrates?
a. Fat digestion occurs in the small intestine, and the digestion of proteins and carbohydrates occurs in the stomach.
b. Fats are absorbed into cells as fatty acids and monoglycerides but are then modified for absorption; amino acids and glucose are not modified further.
c. Fats enter the hepatic portal circulation, but digested proteins and carbohydrates enter the lymphatic system.
d. Digested fats are absorbed in the large intestine, and digested proteins and carbohydrates are absorbed in the small intestine.
What is the function of bile in digestion?
a. It serves as biological detergent that enable the body to excrete cholesterol and potentially toxic compounds.
b. It emulsifies and absorbs dietary lipids in the small intestine.
c.It helps to build and maintain the health of soft and hard tissues.
d. It ingested fat and fat-soluble vitamins, facilitating their digestion and absorption.
Antidiuretic hormone is a part of the negative feedback system that regulates water in the body. Erythropoietin increases the permeability of the distal tubule allowing greater water recovery.
A. First statement is correct, second statement is incorrect.
B. First statement is incorrect, second statement is correct.
C. Both statements are correct.
D. Both statements are incorrect.
Which of the following is the proper sequence of structures in the nephron? I - Proximal Convoluted Tubule II - Distal Convoluted Tubule III - Glomerulus IV -…
How is digestion regulated?a. Digestion is regulated by the autonomic nervous system.b. Digestion is slowed by the parasympathetic nervous system.c. Digestion is increased by the sympathetic nervous system.d. Digestion is stimulated by the parasympathetic fibers of the vagus nerve.e. Sympathetic neurons cause blood to be diverted from digestive organs.
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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- Bile has a role in _________ digestion and absorption. a. carbohydrate c. protein b. fat d. amino acidarrow_forwardExplain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardThe 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.arrow_forward
- How are nutrients absorbed?a. Monosaccharides are absorbed into the epithelial cells of villi through facilitated diffusion.b. Fatty acids and glycerol are absorbed by diffusion into the villi and are then exocytosed to lacteals.c. Amino acids are absorbed into capillaries in the villi.d. Fat-soluble vitamins are absorbed with fatty acids and glycerol.e. Water-soluble vitamins are absorbed through simple diffusion except for vitamin B 12 , which must beendocytosedarrow_forwardHow are nutrients circulated?a. The liver receives blood rich in monosaccharides and amino acids from the capillaries in the small intestinethrough the hepatic vein.b. The liver receives blood rich in monosaccharides and amino acids from the capillaries in the small intestinethrough the hepatic portal vein.c. Fatty acids and glycerol travel to the heart before going to the liver.d. Amino acids and monosaccharides are carried in lymph before blood.e. Fatty acids and glycerol are carried in lymph before blood.arrow_forwardWhich of the following is true about carbohydrate digestion? A. Cellulose and lignin found in plants are totally indigestible even with intestinal bacteria. B. The acidity of the stomach prevents chemical digestion of carbohydrates. C. Dextrin and maltose are the products of chemical digestion of starch by pancreatic amylase. D. Disaccharidases produced from the pancreas breaks down oligosaccharides in the intestines.arrow_forward
- Explain the process of digestion in ruminants. How do ruminants digest their food in two stepsarrow_forwardWhich statement is true? a. Bile is made in the gall bladder and stored in the gall bladder b. Bile is made in the gall bladder and stored in the liver c. Bile is made in the liver and stored in the gall bladder d. Bile is made in the liver and stored in the liverarrow_forwardAfter digested nutrients go from the intestines into the blood, where does that nutrient-rich blood go next? A. to the liver B. directly to the heart C. to the brain D. scattered throughout the bodyarrow_forward
- Which statement is not true? A. most people in the world cannot digest milk sugar as adults B.rabbits eat their first feces to reprocess it C. ceca are pouches that come off of the duodenum to create extra bile in animals that eat lots of fat D. some mammals can digest molecules that humans cannot (eg. certain sugars found in insects) E. the crop is used for storage like bees storing nectar that becomes honey Why would it be bad for animals to store lots of glycogen? A. it is difficult to hold inside cells because it is hydrophobic (it diffuses out) B. it reacts with water to create acids C. it causes blood sugar to be too high D. it is hydrophilic attracting lots of water weight/massarrow_forwardWhat happens in the mouth?a. Enzymes from the pancreas finish protein digestion.b. Mucus mixes with the food to make it easier to swallow.c. Lingual lipase partially breaks down lipids.d. Amylase breaks down protein.e. Food is masticated using the masseter and temporalis muscles.arrow_forwardWhere does the majority of lipid digestion occur? a. large intestine b. stomach c. pancreas d. duodenumarrow_forward
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