HUMAN A+P MOD.MASTERING
2nd Edition
ISBN: 9780136919520
Author: AMERMAN
Publisher: PEARSON
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Chapter 2, Problem 1AYKA
The polysaccharide cellulose is not digestible by humans, as we lack the enzyme cellulase, which is required to break it down. Certain dietary supplements contain the enzyme cellulase and claim that being able to break down cellulose will help a person lose weight. But what do you think would happen if we could digest the cellulose we ate?
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Chapter 2 Solutions
HUMAN A+P MOD.MASTERING
Ch. 2.1 - What are atoms?Ch. 2.1 - How do the three types of subatomic particles...Ch. 2.1 - What is an element?Ch. 2.1 - 4. How are elements arranged in the periodic...Ch. 2.1 - What are isotopes?Ch. 2.2 - What is a mixture?Ch. 2.2 - 2. How do the three types of mixtures differ?
Ch. 2.2 - Prob. 3QCCh. 2.2 - What is an ionic bond?Ch. 2.2 - 5. How is an ionic bond formed?
Ch. 2.2 - 6. How do polar and nonpolar covalent bonds...Ch. 2.2 - What are hydrogen bonds? Between which types of...Ch. 2.3 - Prob. 1QCCh. 2.3 - What are the differences between the three types...Ch. 2.3 - How do endergonic and exergonic reactions differ?Ch. 2.3 - 4. What are the differences between the three main...Ch. 2.3 - What factors can influence the rate of a chemical...Ch. 2.3 - 6. What is an enzyme, and what is its function?
Ch. 2.4 - What four properties of water make it a good...Ch. 2.4 - 2. Which molecules or compounds are likely to be...Ch. 2.4 - What are acids and bases?Ch. 2.4 - What is the pH scale? Which pH values are...Ch. 2.4 - What is the effect of a buffer on a solution?Ch. 2.4 - What is a salt?Ch. 2.4 - 7. What does an electrolyte do in a solution?
Ch. 2.5 - 1. How do polymers and monomers differ?
Ch. 2.5 - 2. How do monosaccharides, disaccharides, and...Ch. 2.5 - How are two monosaccharides linked to form a...Ch. 2.5 - Prob. 4QCCh. 2.5 - 5. How do phospholipids and triglycerides differ?
Ch. 2.5 - What are steroids?Ch. 2.5 - Prob. 7QCCh. 2.5 - How are amino acids linked to form peptides and...Ch. 2.5 - 9. What are the four levels of structural...Ch. 2.5 - 10. What are the components and roles of ATP?
Ch. 2.5 - 11. How do DNA and RNA differ?
Ch. 2 - Prob. 1CYRCh. 2 - Fill in the blanks: Isotopes are atoms with the...Ch. 2 - 3. Which of the following statements correctly...Ch. 2 - 4. Explain the difference between an ionic and a...Ch. 2 - Identify each of the following molecules or...Ch. 2 - What are hydrogen bonds, and how do they form?Ch. 2 - Prob. 7CYRCh. 2 - Prob. 8CYRCh. 2 - Which of the following would not result in an...Ch. 2 - 10. An enzyme is a:
a. biological catalyst that...Ch. 2 - Prob. 11CYRCh. 2 - With respect to their solubility in water,...Ch. 2 - Mark the following statements as true or false. If...Ch. 2 - A salt is: a. a metal cation bonded to a nonmetal...Ch. 2 - 15. Compare and contrast the structures of...Ch. 2 - 16. Mark the following statements as true or...Ch. 2 - 17. Why is it important for a protein to maintain...Ch. 2 - Which of the following is not part of a...Ch. 2 - 19. Mark the following properties as belonging to...Ch. 2 - Which of the following statements is/are true...Ch. 2 - 1. In certain types of radioactive decay, the...Ch. 2 - Considering that water is a main component of the...Ch. 2 - 3. Explain why monosaccharides are polar and fatty...Ch. 2 - 1. The polysaccharide cellulose is not digestible...Ch. 2 - Some claim that the pH of your blood can be...Ch. 2 - Prob. 3AYKACh. 2 - Prob. 4AYKB
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- If both cellulose and starch are just polymers of glucose, why can we only get glucose from starch, while cellulose cannot be digested by our bodies? What is missing for cellulose?arrow_forwardBoth cellulose and starch are long polymers made up thousands of glucose molecules. Yet humans can digest starch but not cellulose. What is the reason that human cannot digest cellulose? Possible responses belowarrow_forwardInfant formulas contain mixes of dextrins and maltose rather than starch because they are easier to digest. Why are they easier to digest than starch?arrow_forward
- Why are fats a richer source of energy than carbohydrates?arrow_forwardWhen you eat a surplus of carbohydrates it can be stored as lipids. Provide a summary of the process involved in this transition.arrow_forwardStarch and sugar have the same number of calories per gram. However, not all vegetables are equally calorie-dense. For example, a serving of boiled sweet potato provides about 1.2 calories per gram, while a serving of kale yields only 0.3 calories per gram. What could account for the difference in the calories your body obtains from these two foods?arrow_forward
- Marathon runners preparing for a race engage in "carb loading" to maximize their carbohydrate reserves. This involves eating large quantities of starchy foods. Why is starch preferable to candy or sugar-rich foods?arrow_forwardWhy does the human body prefer carbohydrates over lipids as an immediate source of energy?arrow_forwardIn the digestion of Carbohydrates, the more complex carbohydrate molecules are broken down into smaller molecules such as the Monosaccharides. This breakdown of complex carbohydrate into simple sugars is an example of: a. Catabollism b. Anabolismarrow_forward
- Why does your digestive system produce separate enzymes to the just proteins fats and carbohydrates?arrow_forwardWhat is the metabolic basis for the observation that many adults cannot ingest large quantities of milk without developing gastric difficulties? What is the benefit of fiber in the diet? Why is it advantageous that polysaccharides can have branched chains? No animal can digest cellulose. Reconcile this statement with the fact that many animals are herbivores that depend heavily on cellulose as a food source.arrow_forwardDuring digestion, fructose is produced by the breakdown of larger molecules. Which type of molecule could be broken down to increase the body’s fructose levels?arrow_forward
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