Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8.L1, Problem 4MCQ
4. An enzyme
a. becomes part of the final products
b. is nonspecific for substrate
c. is consumed by the reaction
d. is heat and pH labile
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1.
A substance that affect the rate of the reaction without being consumed
Select one:
a.
enzymes
b.
all of the above
c.
inhibitors
d.
catalyst
An Enzyme..
A. Becomes part of the final products
B. Is consumed by the reaction
C. Is nonspecfic for substrate
D. is heat & pH sensitive
1. Match the following words with their definitions.
Product
Active site
Enzymes
Catalyst
Substrate
Activation energy
a. amount of energy required for a chemical
reaction to occur
b. substances that bring about a chemical
reaction without being changed itself
c. substances that enzymes act upon
d. regions on the surface of enzymes that fit
the substrate
e. substance formed from the substrate at the
end of the chemical reaction with an enzyme
f. proteins that speed up a chemical reaction
Chapter 8 Solutions
Foundations in Microbiology
Ch. 8.1 - 1. Define metabolism and differentiate its two...Ch. 8.1 - Prob. 2ELOCh. 8.1 - 3. outline the prominent characteristics of...Ch. 8.1 - 4. Explain how enzymes lower the energy required...Ch. 8.1 - 5. Discuss enzyme structure, and interactions...Ch. 8.1 - 6. Describe the types of enzyme functions and...Ch. 8.1 - 7. Summarize key features of enzyme regulation.Ch. 8.1 - 1. Differentiate between catabolism and anabolism...Ch. 8.1 - 2. Describe 10 important biochemical properties of...Ch. 8.1 - 3. Describe the chemistry of enzymes, and explain...
Ch. 8.1 - 4. Show diagrammatically the interaction of...Ch. 8.1 - 5. Differentiate among the chemical composition...Ch. 8.1 - 6. Summarize the direct and indirect controls that...Ch. 8.2 - Prob. 8ELOCh. 8.2 - 9. Describe biological oxidation-reduction and...Ch. 8.2 - Prob. 10ELOCh. 8.2 - 7. Explain how oxidation of a substrate proceeds...Ch. 8.2 - 8. Refer to the blue redox equation for...Ch. 8.2 - 9. In the following redox pairs, which compound is...Ch. 8.2 - 10. a. Describe the roles played by ATP and NAD+...Ch. 8.2 - Prob. 11CYPCh. 8.2 - 12. What is meant by the concept of the “final...Ch. 8.3 - 11. Relate the main points of bioenergetics and...Ch. 8.3 - 12. Describe the main catabolic pathways and their...Ch. 8.3 - 13. Define glycolysis and explain its input and...Ch. 8.3 - Prob. 14ELOCh. 8.3 - 15. Describe the components of the respiratory...Ch. 8.3 - 16. Explain the chemiosmotic mechanism of ATP...Ch. 8.3 - 17. Summarize the results of aerobic respiration.Ch. 8.3 - Prob. 18ELOCh. 8.3 - 13. Describe the basic energy strategies of...Ch. 8.3 - Prob. 14CYPCh. 8.3 - 15. Outline the basic steps in glycolysis,...Ch. 8.3 - Prob. 16CYPCh. 8.3 - 17. What is the fate of NADH in a fermentative...Ch. 8.3 - 18. Summarize the chemiosmotic theory of ATP...Ch. 8.3 - 19. Haw many ATPs could theoretically be formed...Ch. 8.3 - Prob. 20CYPCh. 8.3 - 21. Name the sources of oxygen in bacteria that...Ch. 8.3 - 22. What are the final electron acceptors in...Ch. 8.3 - Prob. 23CYPCh. 8.4 - 19. Explain what is meant by the term fermentation...Ch. 8.4 - 20. Describe some of the processes of fermentation...Ch. 8.4 - 24. What adaptive advantages does a fermentative...Ch. 8.4 - 25. Describe three patterns of fermentation...Ch. 8.5 - 21. Explain how cells perform anabolic functions...Ch. 8.5 - 22. Identify major pathways where molecules can be...Ch. 8.5 - 23. Briefly describe several mechanisms in...Ch. 8.5 - 26. What is meant by amphibolism, and what are its...Ch. 8.5 - Prob. 27CYPCh. 8.5 - 28. Which macromolecules are synthesized by...Ch. 8.6 - 24. Outline the general reactions of...Ch. 8.6 - 25. Describe the pigment systems and how they...Ch. 8.6 - 26. Describe the main events in the...Ch. 8.6 - 27. Describe the main events in the...Ch. 8.6 - 29. Indicate whether each of the following is...Ch. 8.6 - Prob. 30CYPCh. 8.6 - 31. What are the functions of chlorophyll and the...Ch. 8.6 - Prob. 32CYPCh. 8.6 - 33. Compare oxygenic with nonoxygenic...Ch. 8.L1 - 1. ______ is another term for biosynthesis. a....Ch. 8.L1 - Prob. 2MCQCh. 8.L1 - 3. An enzyme ___________ the activation energy...Ch. 8.L1 - 4. An enzyme a. becomes part of the final products...Ch. 8.L1 - 5. An apoenzyme is where the ___________ is...Ch. 8.L1 - 6. Many coenzymes contain a. metals b. vitamins c....Ch. 8.L1 - 7. To digest cellulose in its environment, a...Ch. 8.L1 - 8. Energy in biological systems is primarily a....Ch. 8.L1 - 9. Energy is carried from catabolic to anabolic...Ch. 8.L1 - 10. Exergonic reactions a. release potential...Ch. 8.L1 - Prob. 11MCQCh. 8.L1 - Prob. 12MCQCh. 8.L1 - Prob. 13MCQCh. 8.L1 - 14. Fermentation of a glucose molecule has the...Ch. 8.L1 - Prob. 15MCQCh. 8.L1 - Prob. 16MCQCh. 8.L1 - 17. The FADH2 formed during the Krebs cycle enters...Ch. 8.L1 - 18. The proton motive force is the result of a....Ch. 8.L1 - Prob. 19MCQCh. 8.L1 - Prob. 20MCQCh. 8.L1 - 21. The oxygen produced by photosynthesis comes...Ch. 8.L1 - Prob. 22MCQCh. 8.L1 - Prob. 1CSRCh. 8.L1 - Prob. 2CSRCh. 8.L1 - Prob. 3CSRCh. 8.L1 - Prob. 1WCCh. 8.L1 - 2. Give the general name of the enzyme a. converts...Ch. 8.L1 - 3. Explain what is unique about the actions of ATP...Ch. 8.L1 - Prob. 4WCCh. 8.L1 - 5. Describe four requirements required for...Ch. 8.L1 - Prob. 6WCCh. 8.L1 - Prob. 7WCCh. 8.L1 - Prob. 8WCCh. 8.L2 - 1. Use the following graph to diagram the...Ch. 8.L2 - 2. Explain what is meant by the “biochemical...Ch. 8.L2 - 3. Explain how it is possible for certain microbes...Ch. 8.L2 - 4. Suggest the advantages of having metabolic...Ch. 8.L2 - 5. Two steps in glycolysis are catalyzed by...Ch. 8.L2 - 6. Beer production requires an early period of...Ch. 8.L2 - 7. What would be the expected pHs of the matrix...Ch. 8.L2 - 8. At which site in the mitochondrion and...Ch. 8.L2 - Prob. 9CTCh. 8.L2 - Prob. 10CTCh. 8.L2 - 1. From chapter 7. figure 7.11 (reproduced below)....Ch. 8.L2 - 2. Look at the two figure parts (a) and (b) from...
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- When an enzyme catalyzes a reaction… A. The pH changes B. Substrate concentration is reduced C. Product concentration is reduced D. Substrate concentration is increasedarrow_forward1. A student was given two test tubes. One tube contains a reaction catalyzed by an inorganic catalyst, while the second tube contains a reaction catalyzed by an enzyme which is protein in nature. Give two laboratory procedures which you can perform to differentiate which of the two tubes contain an enzyme-catalyzed reaction.arrow_forwardAn enzymea. becomes part of the final products.b. is nonspecific for substrate.c. is consumed by the reaction.d. is heat and pH labile.arrow_forward
- 1.A student was given two test tubes. One tube contains a reaction catalyzed by an inorganic catalyst, while the second tube contains a reaction catalyzed by an enzyme which is protein in nature. Give two laboratory procedures which you can perform to differentiate which of the two tubes contain an enzyme-catalyzed reaction. 2. List the enzymes whose levels are elevated in blood serum as a result of hepatitis or cirrhosis of the liver.arrow_forward26. AN ORGANIC COFACTOR IN A CONJUGATED ENZYME?A. NEITHER VITAMINS NOR MINERALSB. MINERALS C. VITAMINSD. BOTH VITAMINS AND MINERALS 27. WHICH OF THE FOLLOWING STATEMENTS CONCERNING COFACTORS IS INCORRECT?A. VITAMINS CANNOT BE COFACTORSB. SOME COFACTORS ARE METAL IONS C. COFACTOR IS THE NON-PROTEIN PORTION OF ENZYME D. CONJUGATED ENZYMES CONTAIN COFACTORS 28. WHICH OF THE FOLLOWING VITAMINS IS NOT A FAT SOLUBLE VITAMIN? A. VITAMIN E B. VITAMIN C C. VITAMIN A D. VITAMIN D 29. WHAT HAPPENS TO SUBSTRATE MOLECULES AT AN ENZYME ACTIVE SITE?A. ALWAYS REACT WITH OXYGEN B. UNDERGO CHANGE TO A DESIRED PRODUCTS C. BECOME CATALYST C ALWAYS REACT WITH OXYGEN B UNDERGO CHANGE TO A DESIRED PRODUCT D. BECOME COVALENTLY BONDED TO THE ENZYME D. BECOME COVALENTLY BONDED TO THE ENZYME 30. ACTION OF CHEMICAL WARFARE AND ORGANOPHOSPHATE INSECTICIDE ARE BASED ON?A. REVERSIBLE ENZYME INHIBITOR B. IRREVERSIBLE ENZYME INHIBITOR C. REVERSIBLE ENZYME ACTIVATOR D. IRREVERSIBLE ENZYME ACTIVATORarrow_forward1. What is the significance of the effect of enzyme concentration to enzyme activity in relation to the medical aspect? a. A person with fever cannot eat well and may suffer from indigestion b. A person with hyperacidicity experience vomiting upon taking milk c. Abnormal level of diagnostic enzymes indicate damage in the body tissues d. Too much hydrogen peroxide in the body forms free radicals if not decomposed by peroxidase 2. What is the relation of the effect of temperature on enzyme activity to the medical field? a. To explain the cause why a feverish person cannot eat b. To explain why drinking carbonated leaves a fizzing sensation in our tongue c. To explain the cause why milk should not be taken by hyperacidic individual d. To explain why bubbles are formed when cleaning wounds with hydrogen peroxide 3. What reaction was involved in the determination of Vitamin C content of fruits? a. Oxidation…arrow_forward
- 31. Which of the following is true? A.In a catabolic reaction, molecules assemble into smaller ones and release energy B. In a catabolic reaction, molecules assemble into smaller ones and store energy C. In a catabolic reaction, molecules break down into smaller ones and release energy D. In a catabolic reaction, molecules break down into smaller ones and store energyarrow_forward1. Looking at the graph you should be able to explain every activity of every enzyme. Please describe each one of them. 1A: Why is Temperature and pH so important? When is an enzyme able to work properlyarrow_forwardA metal ion required for enzyme activity is called a. cofactor b. a proenzyme c. a subtrate d. a zymogenarrow_forward
- 6. Define: Energy of activation (EA) and tell how enzymes change it. 7. Identify a, b, c, d and e for the Reactions A+B C+D Or C+D A+B C. b. A+B a. е. a. d. C. C+D d. Progress of the Reaction e. Free Energy b.arrow_forwardINSTRUCTIONS - Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer. Answer properly -arrow_forward1. Each enzyme is able to promote only one type of chemical reaction. The compounds on which the enzyme acts are called substrates. Enzymes operate in tightly organized metabolic systems called pathways. How does the following factors below influence enzyme activity? a. Temperature b. pH C. substrate concentration d. inhibitorsarrow_forward
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