Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 33, Problem 4TYU
Summary Introduction
Introduction:
All living beings consume food for energy, which is used for their survival. Energy helps the living organisms to carry out all the life-supporting
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Which 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.
In a non-fermenting mono-gastric animal, which of the following compounds is least digestible?
Select one:
a.
Starch
b.
Protein
c.
Cellulose
d.
Fatty acids
Certain amino acids are essential to the diet of animals because they
a.
are the most important source of stored energy.
b.
are needed to make stored fats used during hibernation and migration.
c.
cannot be synthesized directly by the body.
d.
prevent over-nourishment.
Chapter 33 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 33.1 - An animal requires 20 amino acids to make...Ch. 33.1 - Prob. 2CCCh. 33.1 - WHAT IF? if a zoo animal eating ample food shows...Ch. 33.2 - Prob. 1CCCh. 33.2 - In what sense are nutrients from a recently...Ch. 33.2 - Prob. 3CCCh. 33.3 - How does swallowed food reach the stomach of a...Ch. 33.3 - Explain why a proton pump inhibitor, such as the...Ch. 33.3 - Prob. 3CCCh. 33.4 - Prob. 1CC
Ch. 33.4 - Prob. 2CCCh. 33.4 - Prob. 3CCCh. 33.5 - Prob. 1CCCh. 33.5 - The energy required to maintain each gram of body...Ch. 33.5 - Prob. 3CCCh. 33 - The mammalian trachea and esophagus both connect...Ch. 33 - Which organ is incorrectly paired with its...Ch. 33 - Which of the following is not a major activity of...Ch. 33 - Prob. 4TYUCh. 33 - Prob. 5TYUCh. 33 - If you were to jog 1 km a few hours after lunch,...Ch. 33 - Prob. 7TYUCh. 33 - Prob. 8TYUCh. 33 - FOCUS ON EVOLUTION The human esophagus and trachea...Ch. 33 - Prob. 10TYUCh. 33 - Prob. 11TYU
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- Which of the following statement is correct? a. disaccharides, glucose is the main source of energy for mammals b. hunger pangs are initiated by low high-density lipoprotein in the blood c. duodenum is the smallest part of the small intestine and is the main site for absorption d. it takes 4-6 hours for the bolus to be transported in the anal canalarrow_forwardWhich of the following statements is true?a. Intracellular digestion commonly occurs in vertebrates.b. Absorption of nutrients always requires active transport.c. Alimentary canals have two openings, whereas gastrovascularcavities have only one.d. Extracellular, but not intracellular, digestion requires hydrolyticenzymes.e. Most minerals are absorbed by simple diffusion.arrow_forwardWhich of the following statements is/are TRUE?A. Cells in a resting metabolic state have low ATP and NADH.B. Cells in a highly active metabolic state have high ATP but low NADH.C. Cells in a highly active metabolic state has high NADH but low ATP.In the stomach, the dietary fats are emulsified by?A.peristalsisB.pancreatic lipaseC. bile saltsD. lingual lipasearrow_forward
- The Liver makes “Ketone Bodies” (acetoacetic acid and -hydroxybutryic acid): a. as a long-term energy storage reserve b. to provide an alternative energy source to muscle, the kidney and other organs when on a prolonged low carbohydrate diet c. from fatty acids oxidized to acetyl CoA d. to detoxify lactose absorbed from the large intestine e. when our muscles cannot get enough oxygen to carry out oxidative phosphorylationarrow_forwardWhich of the following statements regarding protein digestion is incorrect? A. The intestinal enzymes trypsin and chymotrypsin continue the chemical breakdown of polypeptides into oligopeptides. B. Chemical digestion of proteins is initiated in the stomach through the action of the enzyme pepsin. C. Mechanical digestion of proteins starts in the mouth through chewing. D. Di- and tripeptides enter the intestinal cells where they are broken down by peptidases into individual amino acids.arrow_forwardWhich of the following best describe the function of goblet cells in the digestive tract? A. produce mucus that protects parts of the digestive organs from the effects of powerful enzymes needed for food digestion B. secrete buffers in order to keep the pH of the digestive tract close to neutral C. provide protection against invading bacteria and other disease-causing organisms that enter the digestive tract in food D. absorb nutrients from digested food and store them for future usearrow_forward
- Which of the following would you predict to be the consequence of Vitamin B12 deficiency in ruminant animals? Select one: a. Inability to metabolize volatile fatty acids for oxidation in Krebs Cycle b. Inability to absorb digested carbohydrates in the rumen c. Inability of rumen microflora to enzymatically cleave bonds between sugars in cellulose d. Inability to convert glucose to pyruvic acidarrow_forwardWhich of the following is FALSE? A. Bile is a fat molecule-busting enzyme B. Vitamins are organic compounds. C. Most plants have a different composition of amino acids compared to animals. D. Water reabsorption is one of the main functions of the large intestines.arrow_forwardWhich of the following types of animals has the highest efficiency in being able to absorb saturated fatty acids across the intestinal epithelia? Select one: a. Chicken b. Ox c. Chimpanzee d. Iguana e. Dogarrow_forward
- Digestion of proteins begins in the protein into a. stomach; amylase; HCl; amino acids b. mouth; pepsin; HCl; fatty acids c. stomach; lipase; HCl; amino acids d. stomach; pepsin; HCl; amino acids where and mix with food to break downarrow_forwardWhich of the following statements is not true? a. Essential nutrients can be synthesized by the body. b. Vitamins are required in small quantities for bodily function. c. Some amino acids can be synthesized by the body, while others need to be obtained from diet. d. Vitamins come in two categories: fat-soluble and water-soluble.arrow_forwardThe purpose of Microvilli in the human digestive tract is to: a. kill detrimental bacteria in the esophagus b. emulsify fats c. secrete pepsinogen in the stomach d. absorb nutrients from the small intestine into the bloodstream e. secrete trypsinogen and chymotrypsin into the duodenumarrow_forward
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