Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 2, Problem 6MCQ
Summary Introduction
Introduction:
A reducing agent is a substance that can donate an electron to some other atom. The atom which receives an electron becomes reduced.
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A chemical reaction is more likely to occur spontaneously if
A. the products of the reaction are more complex than the reactants.
B. the system takes up heat from its surroundings.
C. the products of the reaction are more disordered than the reactants.
D. the system gains free energy.
Which two of the following apply to the products of an exergonic reaction?
A. Have less energy than the reactants
B. Are less ordered than the reactants
C. Are more ordered than the reactants
D. Have more energy than the reactants
Which of the following increases the rate of a reaction? a. cold temperatures b. solid reactants c. increased reactant concentration d. absence of a catalyst
Chapter 2 Solutions
Microbiology: A Systems Approach
Ch. 2.1 - Explain the relationship between atoms and...Ch. 2.1 - Prob. 2AYPCh. 2.1 - Prob. 3AYPCh. 2.1 - Prob. 4AYPCh. 2.2 - Prob. 5AYPCh. 2.2 - Provide examples of cell components made from each...Ch. 2.2 - Prob. 7AYPCh. 2.2 - Prob. 8AYPCh. 2.2 - Name the nitrogen bases of DNA and RNA.Ch. 2.2 - Prob. 10AYP
Ch. 2.3 - Recall three characteristics common to all cells.Ch. 2 - The smallest unit of matter with unique...Ch. 2 - The ____ charge of a proton is exactly balanced by...Ch. 2 - Electrons move around the nucleus of an atom in...Ch. 2 - Bonds in which atoms share electrons are defined...Ch. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - Prob. 7MCQCh. 2 - Prob. 8MCQCh. 2 - DNA is a hereditary molecule that is composed of...Ch. 2 - Prob. 10MCQCh. 2 - Prob. 11TFCh. 2 - Prob. 12TFCh. 2 - Prob. 13TFCh. 2 - Prob. 14TFCh. 2 - Membranes are mainly composed of macromolecules...Ch. 2 - Support or refute the following statement: Double...Ch. 2 - Prob. 2CTQCh. 2 - Plant cell walk are composed of cellulose, a...Ch. 2 - Compare and contrast the kinds of chemical bonding...Ch. 2 - Prob. 5CTQCh. 2 - Prob. 1VCCh. 2 - Prob. 1CM
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- One major difference between inorganic catalysts and organic catalysts is: A. Inorganic catalysts may not be compatible with biological parameters B. Organic catalysts are consumed during the chemical reaction C. Organic catalysts influence the activation energy of a reaction D. Inorganic catalysts decrease the probability a reaction will occurarrow_forwardDefine the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e. sphingomyelinarrow_forwardChemical reactions that take place in living systems include A. Neutralization reaction B. Condensation reaction C. Hydrolysis reaction D. All the abovearrow_forward
- 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_forwardUsing this chemical equation: 3Na+AlCl3->3NaCl+Al If 16 g Na and 8 g AlCl3 are allowed to react, find a. the limiting reactant b. the excess reactant c. the grams of Al are formed in the chemical reaction.arrow_forwardA reducing chemical reaction: a. reduces the compound to a simpler form b. adds an electron to the substrate c. removes a hydrogen atom from the substrate d. is a catabolic reaction. With reason.arrow_forward
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