Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8, Problem 4MCQ
Many coenzymes are
- a. metals.
- b. vitamins.
- c. proteins.
- d. substrates.
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Which statement defines a coenzyme?
a.
An enzyme precursor
b.
A unit consisting of an enzyme bound to reactants plus ATP
c.
An inactive enzyme that becomes functional upon contact with specific cofactors
d.
The active part of an enzyme
e.
An organic molecule closely associated with enzymes
Which of these statements about enzymes is true? a,Most proteins are enzymes. b.Most enzymes are proteins. c.Enzymes are changed by the reactions they catalyze. d.The active sites of enzymes have little specificity for substrates.
Which of the following is not true about enzymes?a. They are consumed by the reactions they catalyze.b. They are usually made of amino acids.c. They lower the activation energy of chemical reactions.d. Each one is specific to the particular substrate(s) to which it binds.
Chapter 8 Solutions
Microbiology: A Systems Approach
Ch. 8.1 - Describe the relationship among metabolism,...Ch. 8.1 - Fully discuss the structure and function of...Ch. 8.1 - Differentiate between an apoenzyme and a...Ch. 8.1 - Differentiate between an endoenzyme and an...Ch. 8.1 - Diagram the four major patterns of metabolism.Ch. 8.1 - Describe how enzymes are controlled.Ch. 8.2 - Name the chemical in which energy is stored in...Ch. 8.2 - Create a general diagram of a redox reaction.Ch. 8.2 - Identify electron carriers used by cells.Ch. 8.3 - List three basic catabolic pathways and the...
Ch. 8.3 - Construct a paragraph summarizing glycolysis.Ch. 8.3 - Describe the Krebs cycle and compare the process...Ch. 8.3 - Discuss the significance of the electron transport...Ch. 8.3 - State two ways in which anaerobic respiration...Ch. 8.3 - Summarize the steps of microbial fermentation and...Ch. 8.3 - Prob. 16AYPCh. 8.4 - Prob. 17AYPCh. 8.4 - Define amphibolism.Ch. 8.5 - Summarize the overall process of photosynthesis in...Ch. 8.5 - Discuss the relationship between light-dependent...Ch. 8.5 - Explain the role of the Calvin cycle in the...Ch. 8 - Prob. 1MCQCh. 8 - An enzyme a. becomes part of the final products....Ch. 8 - An apoenzyme is where the ____ is located. a....Ch. 8 - Many coenzymes are a. metals. b. vitamins. c....Ch. 8 - Prob. 5MCQCh. 8 - Energy is carried from catabolic to anabolic...Ch. 8 - A product or products of glycolysis is/are a. ATP....Ch. 8 - Prob. 8MCQCh. 8 - Complete oxidation of glucose in aerobic...Ch. 8 - ATP synthase complexes can generate ______ ATP(s)...Ch. 8 - True-False Questions. If the statement is true,...Ch. 8 - An enzyme lowers the activation energy required...Ch. 8 - One cycle of fermentation yields more energy than...Ch. 8 - Energy in biological systems is primarily...Ch. 8 - Exoenzymes are produced outside the cell.Ch. 8 - Prob. 1CTQCh. 8 - Prob. 2CTQCh. 8 - Compare and contrast the processes of...Ch. 8 - Draw a bacterial cell and a eukaryotic cell side...Ch. 8 - Provide evidence in support of or refuting the...Ch. 8 - From chapter 4, figure 4.16. On the enlarged...Ch. 8 - Using the words that follow, please create a...
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- Beta oxidation is ______. a. the breakdown of sugars b. the assembly of sugars c. the breakdown of fatty acids d. the removal of amino groups from amino acidsarrow_forward________ are always changed by participating in a reaction. a. Enzymes c. Reactants b. Cofactors d. Coenzymesarrow_forwardWhat kind of reaction does each of these enzymes catalyze?(a) A dehydrase(b) A carboxylase(c) A proteasearrow_forward
- Which of the following is not a function of a protein? A. Long term energy storage B.Repair body tissues C.Allows metabolic reactions to take place D.They catalyze reactionsarrow_forwardWhich of the following statements concerning fatty acids is correct? a. Used to make phospholipids b. They all contain one or more double bonds. c. They are a constituent of sterols. d. They are strongly hydrophilic.arrow_forwardThe process by which monomers of organic molecules are made into larger unitsa. requires hydrolysis.b. results in the generation of water molecules.c. is irreversible.d. occurs only with carbohydrates.e. results in the production of ATP.arrow_forward
- which of the following statements are correct?a. coenzyme is an alternate name for all cofactors b. metal ions can function as cofactors c. all conjugated enzymes contain cofactorsarrow_forwardWhich of the following can be used to synthesize fatty acids? a. Glucose c. Both a and b b. Amino acids d.Neither a nor barrow_forwardWhat is a regulatory mechanism in which a reaction product slows or stops a metabolic pathway that produces it? A. Phosphorylation B. Feedback inhibition C. Electron transfer chain D. Coenzymearrow_forward
- In 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_forwardWhich of the following choices BEST describes metabolism? a. breakdown of biomolecules b. controlled by enzymes and involved ATP c. all of the choices are correct d. synthesis of biomoleculesarrow_forwardThe sum of all biosynthetic reactions in a cell is known as A) metabolism. B) anabolism. C) catabolism. D) synthatabolism.arrow_forward
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