Question 1

The breakdown of peptidoglycan to N-acetylmuramic acid,N-acetylglucosamine,and peptides is an example of

Accepted Answer

A) anabolism. 
B) catabolism. 
C) phosphorylation. 
D) fermentation. 
E) synthesis. 
A) anabolism. 
B) catabolism. 
C) phosphorylation. 
D) fermentation. 
E) synthesis.

Question 2

The principal sites of amphibolic interaction occur during

Accepted Answer

A) glycolysis and photosynthesis. 
B) the Krebs cycle and electron transport system. 
C) glycolysis and the Krebs cycle. 
D) fermentation and the Krebs cycle. 
E) fermentation and glycolysis. 
A) glycolysis and photosynthesis. 
B) the Krebs cycle and electron transport system. 
C) glycolysis and the Krebs cycle. 
D) fermentation and the Krebs cycle. 
E) fermentation and glycolysis.

Question 3

Which of the following is not involved in the step that occurs between glycolysis and the Krebs cycle?

Accepted Answer

A) one NADH is formed 
B) one carbon dioxide is released 
C) coenzyme A attaches to an acetyl group 
D) pyruvic acid accepts electrons from NADH 
A) one NADH is formed 
B) one carbon dioxide is released 
C) coenzyme A attaches to an acetyl group 
D) pyruvic acid accepts electrons from NADH

Question 4

During which of the phases of cellular respiration is the majority of ATP formed?

Accepted Answer

A) electron transport 
B) Krebs cycle 
C) glycolysis 
D) processing of pyruvic acid for the Krebs cycle 
E) All phases produce the same number of ATP molecules. 
A) electron transport 
B) Krebs cycle 
C) glycolysis 
D) processing of pyruvic acid for the Krebs cycle 
E) All phases produce the same number of ATP molecules.

Question 5

Enzymes are

Accepted Answer

A) broken down in reactions that require energy input. 
B) proteins that function as catalysts. 
C) used up in chemical reactions. 
D) not needed for catabolic reactions. 
E) All of the choices are correct. 
A) broken down in reactions that require energy input. 
B) proteins that function as catalysts. 
C) used up in chemical reactions. 
D) not needed for catabolic reactions. 
E) All of the choices are correct.

Question 6

In addition to electrons,which of the following is also involved in electron transfer?

Accepted Answer

A) ADP 
B) glucose 
C) carbon 
D) hydrogen 
E) carbon dioxide 
A) ADP 
B) glucose 
C) carbon 
D) hydrogen 
E) carbon dioxide

Question 7

When the product of reaction A becomes the reactant of reaction B,the metabolic pathway is

Accepted Answer

A) linear. 
B) bidirectional. 
C) convergent. 
D) cyclic. 
E) divergent. 
A) linear. 
B) bidirectional. 
C) convergent. 
D) cyclic. 
E) divergent.

Question 8

Exergonic reactions

Accepted Answer

A) include synthesis of large carbohydrates. 
B) only occur in heterotrophs. 
C) release energy. 
D) do not occur in anaerobic cellular respiration. 
E) occur when ADP binds to inorganic phosphate to form ATP. 
A) include synthesis of large carbohydrates. 
B) only occur in heterotrophs. 
C) release energy. 
D) do not occur in anaerobic cellular respiration. 
E) occur when ADP binds to inorganic phosphate to form ATP.

Question 9

The reactions of fermentation function to produce _____ molecules for use in glycolysis.

Accepted Answer

A) pyruvic acid 
B) ATP 
C) NAD+ 
D) NADH 
E) glucose 
A) pyruvic acid 
B) ATP 
C) NAD+ 
D) NADH 
E) glucose

Question 10

Reactants are converted to products by

Accepted Answer

A) enzymes releasing energy. 
B) breaking and forming bonds. 
C) enzymes binding to reactants. 
D) reactants releasing energy. 
E) None of the choices is correct. 
A) enzymes releasing energy. 
B) breaking and forming bonds. 
C) enzymes binding to reactants. 
D) reactants releasing energy. 
E) None of the choices is correct.

Question 11

Oxygen-containing ions are used by some bacteria as final electron acceptors.

Accepted Answer

A) True 
 B)False

Question 12

Building block molecules for biosynthetic pathways come from the cell's catabolic pathways and from the environment.

Accepted Answer

A) True 
 B)False

Question 13

The property of organisms to integrate catabolic and anabolic pathways to improve cell efficiency is called

Accepted Answer

A) metabolism. 
B) amphibolism. 
C) anabolism. 
D) catabolism. 
E) biosynthesis. 
A) metabolism. 
B) amphibolism. 
C) anabolism. 
D) catabolism. 
E) biosynthesis.

Question 14

In bacterial cells,when glucose is completely oxidized by all the pathways of aerobic cellular respiration,what is the maximum number of ATP generated?

Accepted Answer

A) 2 ATP 
B) 3 ATP 
C) 24 ATP 
D) 42 ATP 
E) 38 ATP 
A) 2 ATP 
B) 3 ATP 
C) 24 ATP 
D) 42 ATP 
E) 38 ATP

Question 15

All of the following pertain to glycolysis except it

Accepted Answer

A) occurs without oxygen. 
B) ends with formation of pyruvic acid. 
C) occurs during fermentation. 
D) degrades glucose to CO2 and H2O. 
E) involves reduction of NAD. 
A) occurs without oxygen. 
B) ends with formation of pyruvic acid. 
C) occurs during fermentation. 
D) degrades glucose to CO2 and H2O. 
E) involves reduction of NAD.

Question 16

Enzymes that hydrolyze a peptide bond are called

Accepted Answer

A) phosphotransferases. 
B) oxidoreductases. 
C) peptidases. 
D) aminotransferases. 
E) ligases. 
A) phosphotransferases. 
B) oxidoreductases. 
C) peptidases. 
D) aminotransferases. 
E) ligases.

Question 17

NADH and FADH2 molecules are oxidized in which step of the aerobic respiration process?

Accepted Answer

A) electron transport system 
B) Krebs cycle 
C) glycolysis 
D) step before Krebs cycle 
A) electron transport system 
B) Krebs cycle 
C) glycolysis 
D) step before Krebs cycle

Question 18

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
  A newborn infant screening yields a positive result for biotinidase deficiency. As the RN, you provide education for the patient’s parents regarding the role of enzymes in metabolism and this enzyme deficiency disorder. 
-All of the following are true of enzymes except

Accepted Answer

A) enzymes increase the rate of a chemical reaction. 
B) enzymes are not part of the products of a chemical reaction. 
C) enzymes create a chemical reaction. 
D) enzymes are not consumed in a chemical reaction. 
A) enzymes increase the rate of a chemical reaction. 
B) enzymes are not part of the products of a chemical reaction. 
C) enzymes create a chemical reaction. 
D) enzymes are not consumed in a chemical reaction.

Question 19

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 20

Fermentation

Accepted Answer

A) requires an organic electron acceptor. 
B) requires oxygen. 
C) only occurs in aerobic organisms. 
D) can be equivalent to aerobic respiration in ATP production. 
E) None of the choices is correct. 
A) requires an organic electron acceptor. 
B) requires oxygen. 
C) only occurs in aerobic organisms. 
D) can be equivalent to aerobic respiration in ATP production. 
E) None of the choices is correct.

Exam 7: Microbial Metabolism

The breakdown of peptidoglycan to N-acetylmuramic acid,N-acetylglucosamine,and peptides is an example of

The principal sites of amphibolic interaction occur during

Which of the following is not involved in the step that occurs between glycolysis and the Krebs cycle?

During which of the phases of cellular respiration is the majority of ATP formed?

Enzymes are

In addition to electrons,which of the following is also involved in electron transfer?

When the product of reaction A becomes the reactant of reaction B,the metabolic pathway is

Exergonic reactions

The reactions of fermentation function to produce _____ molecules for use in glycolysis.

Reactants are converted to products by

Oxygen-containing ions are used by some bacteria as final electron acceptors.

Building block molecules for biosynthetic pathways come from the cell's catabolic pathways and from the environment.

The property of organisms to integrate catabolic and anabolic pathways to improve cell efficiency is called

In bacterial cells,when glucose is completely oxidized by all the pathways of aerobic cellular respiration,what is the maximum number of ATP generated?

All of the following pertain to glycolysis except it

Enzymes that hydrolyze a peptide bond are called

NADH and FADH2 molecules are oxidized in which step of the aerobic respiration process?

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule?

Fermentation

Introduction to Microbes and Their Building Blocks

Tools of the Laboratory: Methods for the Culturing and Microscopic Analysis

Bacteria and Archaea

Eukaryotic Cells and Microorganisms

Viral Structure and Life Cycles

Microbial Nutrition and Growth

Microbial Genetics and Genetic Engineering

Physical and Chemical Control of Microbes

Antimicrobial Treatment

Interactions Between Microbes and Humans

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory Systems

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

One Health: The Interconnected Health of the Environment, humans, and Other Animals

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NADH and FADH₂ molecules are oxidized in which step of the aerobic respiration process?