Question 1

Which statement is TRUE with respect to the electron transport system?

Accepted Answer

A)  The electron transport system accepts electrons directly from glucose. 
B)  In bacteria, the electron transport system is located in the cytoplasm. 
C)  A proton motive force is generated as electrons move through the system to a terminal acceptor. 
D)  In prokaryotes, protons are transported into the cell as electrons move through the system. 
E)  ATP is produced by a process called substrate-level phosphorylation. 
A)  The electron transport system accepts electrons directly from glucose. 
B)  In bacteria, the electron transport system is located in the cytoplasm. 
C)  A proton motive force is generated as electrons move through the system to a terminal acceptor. 
D)  In prokaryotes, protons are transported into the cell as electrons move through the system. 
E)  ATP is produced by a process called substrate-level phosphorylation.

Question 2

What is dissimulative nitrate reduction?

Accepted Answer

A)  The production of nitrate from ammonia. 
B)  The incorporation of nitrate into cellular material. 
C)  Anaerobic reduction of nitrate. 
D)  Nitrogen fixation. 
E)  The production of nitrate from nitrite. 
A)  The production of nitrate from ammonia. 
B)  The incorporation of nitrate into cellular material. 
C)  Anaerobic reduction of nitrate. 
D)  Nitrogen fixation. 
E)  The production of nitrate from nitrite.

Question 3

During the respiratory process,as electrons are passed through the electron transport chain,a ________ ________ force is generated across a biological membrane to drive the synthesis of ATP by a membrane associated ATP synthase.

Accepted Answer

The answer of During the respiratory process,as electrons are passed...

Question 4

The reduction of dinitrogen to ammonia for assimilation is called nitrogen ________.

Accepted Answer

The answer of The reduction of dinitrogen to ammonia for...

Question 5

Enzymes increase the rate of a biochemical reaction by lowering the _________ _________ of the reaction.

Accepted Answer

The answer of Enzymes increase the rate of a biochemical...

Question 6

The most common lipids in the cell are synthesized from ___________ and ____________.

Accepted Answer

A)  fatty acids and sterol 
B)  fatty acids and glycerol 
C)  fatty acids and hopanoids 
D)  hopanoids and sterols 
E)  glycerol and hopanoids 
A)  fatty acids and sterol 
B)  fatty acids and glycerol 
C)  fatty acids and hopanoids 
D)  hopanoids and sterols 
E)  glycerol and hopanoids

Question 7

Which of these is the most widely used form of energy in cell processes?

Accepted Answer

A)  glucose 
B)  NADH 
C)  pyruvate 
D)  ATP 
E)  citrate 
A)  glucose 
B)  NADH 
C)  pyruvate 
D)  ATP 
E)  citrate

Question 8

What does a large positive ΔE₀' indicate for a redox reaction?

Accepted Answer

A)  It is endergonic. 
B)  It has a positive ΔG⁰'. 
C)  It will require an input of energy. 
D)  It is spontaneous. 
E)  It is energetically unfavorable. 
A)  It is endergonic. 
B)  It has a positive ΔG⁰'. 
C)  It will require an input of energy. 
D)  It is spontaneous. 
E)  It is energetically unfavorable.

Question 9

Which amino acids are the primary nitrogen donors for biosynthetic reactions in the cell?

Accepted Answer

A)  glycine and glutamate 
B)  glycine and serine 
C)  glutamine and glutamate 
D)  glutamine and serine 
E)  serine and glutamate 
A)  glycine and glutamate 
B)  glycine and serine 
C)  glutamine and glutamate 
D)  glutamine and serine 
E)  serine and glutamate

Question 10

The use of an exogenous terminal electron acceptor other than oxygen is called __________ __________.

Accepted Answer

anaerobic

Question 11

The photosynthetic membranes in cyanobacteria are called __________ membranes.

Accepted Answer

The answer of The photosynthetic membranes in cyanobacteria are called...

Question 12

Which of these are important products of the pentose phosphate pathway that are used in biosynthesis?

Accepted Answer

A)  pyruvate, ribose-5-phosphate, and NADPH 
B)  NADPH, ribose-5-phosphate, and erythrose-4-phosphate 
C)  pyruvate, citrate, and erythrose-4-phosphate 
D)  pyruvate, erythrose-4-phosphate, and ribose-5-phosphate 
E)  citrate, NADPH, and ribose-5-phosphate 
A)  pyruvate, ribose-5-phosphate, and NADPH 
B)  NADPH, ribose-5-phosphate, and erythrose-4-phosphate 
C)  pyruvate, citrate, and erythrose-4-phosphate 
D)  pyruvate, erythrose-4-phosphate, and ribose-5-phosphate 
E)  citrate, NADPH, and ribose-5-phosphate

Question 13

Which of these is NOT an electron carrier used in the electron transport system?

Accepted Answer

A)  flavoproteins 
B)  iron-sulfur proteins 
C)  ATPase 
D)  quinones 
E)  cytochromes 
A)  flavoproteins 
B)  iron-sulfur proteins 
C)  ATPase 
D)  quinones 
E)  cytochromes

Question 14

A chemical reaction that has a negative ΔG⁰

Accepted Answer

A)  is an endergonic reaction. 
B)  will require an input of energy. 
C)  is not a spontaneous reaction. 
D)  is an energy yielding reaction. 
E)  will absorb energy. 
A)  is an endergonic reaction. 
B)  will require an input of energy. 
C)  is not a spontaneous reaction. 
D)  is an energy yielding reaction. 
E)  will absorb energy.

Question 15

Describe how ATP and NADPH are produced during the light reactions in the green-sulfur bacteria.

Accepted Answer

During the light reactions in green-sulf

Question 16

What are the NET products of the Embden-Meyerhof pathway,when operating in the catabolic direction?

Accepted Answer

A)  Two pyruvate, two ATP, and two NADH. 
B)  Two pyruvate, four ATP, and four NADH. 
C)  Two CO₂, four pyruvate, two ATP, and four NADH. 
D)  Two CO₂, two pyruvate, four ATP, and four NADH. 
E)  Two CO₂, two pyruvate, two ATP, and two NADH. 
A)  Two pyruvate, two ATP, and two NADH. 
B)  Two pyruvate, four ATP, and four NADH. 
C)  Two CO₂, four pyruvate, two ATP, and four NADH. 
D)  Two CO₂, two pyruvate, four ATP, and four NADH. 
E)  Two CO₂, two pyruvate, two ATP, and two NADH.

Question 17

The biosynthesis of amino acids requires starting intermediates from which of these pathways?

Accepted Answer

A)  glycolysisonly 
B)  the TCA cycleonly 
C)  glycolysis and TCA cycle 
D)  the pentose phosphate pathway and glycolysis 
E)  glycolysis, TCA cycle, and the pentose phosphate pathway 
A)  glycolysisonly 
B)  the TCA cycleonly 
C)  glycolysis and TCA cycle 
D)  the pentose phosphate pathway and glycolysis 
E)  glycolysis, TCA cycle, and the pentose phosphate pathway

Question 18

Which of these is TRUE for a chemolithoautotroph?

Accepted Answer

A)  inorganic molecules as energy sources and inorganic carbon as a carbon source. 
B)  organic molecules as electron sources and inorganic carbon as a carbon source. 
C)  organic molecules as energy sources and organic carbon as a carbon source. 
D)  inorganic molecules as electron sources and organic carbon as a carbon source. 
E)  inorganic molecules as energy sources and organic carbon as a carbon source. 
A)  inorganic molecules as energy sources and inorganic carbon as a carbon source. 
B)  organic molecules as electron sources and inorganic carbon as a carbon source. 
C)  organic molecules as energy sources and organic carbon as a carbon source. 
D)  inorganic molecules as electron sources and organic carbon as a carbon source. 
E)  inorganic molecules as energy sources and organic carbon as a carbon source.

Question 19

What can the proton motive force generated by the electron transport system be used for?

Accepted Answer

A)  NADH oxidation, ATP synthesis, and flagella rotation 
B)  NADH oxidation, ATP synthesis, and nutrient transport 
C)  ATP synthesis, flagella rotation, and nutrient transport 
D)  NADH oxidation, flagella rotation, and nutrient transport 
E)  oxygen reduction and ATP synthesis 
A)  NADH oxidation, ATP synthesis, and flagella rotation 
B)  NADH oxidation, ATP synthesis, and nutrient transport 
C)  ATP synthesis, flagella rotation, and nutrient transport 
D)  NADH oxidation, flagella rotation, and nutrient transport 
E)  oxygen reduction and ATP synthesis

Question 20

The only function of the Embden-Meyerhof pathway is the catabolism of glucose.

Accepted Answer

A) True 
 B)False

Exam 13: Metabolism

Which statement is TRUE with respect to the electron transport system?

What is dissimulative nitrate reduction?

During the respiratory process,as electrons are passed through the electron transport chain,a ________ ________ force is generated across a biological membrane to drive the synthesis of ATP by a membrane associated ATP synthase.

The reduction of dinitrogen to ammonia for assimilation is called nitrogen ________.

Enzymes increase the rate of a biochemical reaction by lowering the _________ _________ of the reaction.

The most common lipids in the cell are synthesized from ___________ and ____________.

Which of these is the most widely used form of energy in cell processes?

What does a large positive ΔE₀' indicate for a redox reaction?

Which amino acids are the primary nitrogen donors for biosynthetic reactions in the cell?

The use of an exogenous terminal electron acceptor other than oxygen is called __________ __________.

The photosynthetic membranes in cyanobacteria are called __________ membranes.

Which of these are important products of the pentose phosphate pathway that are used in biosynthesis?

Which of these is NOT an electron carrier used in the electron transport system?

A chemical reaction that has a negative ΔG⁰

Describe how ATP and NADPH are produced during the light reactions in the green-sulfur bacteria.

What are the NET products of the Embden-Meyerhof pathway,when operating in the catabolic direction?

The biosynthesis of amino acids requires starting intermediates from which of these pathways?

Which of these is TRUE for a chemolithoautotroph?

What can the proton motive force generated by the electron transport system be used for?

The only function of the Embden-Meyerhof pathway is the catabolism of glucose.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

DNA Replication and Gene Expression

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Microbial Symbionts

Introduction to Infectious Diseases

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Survival in the Host

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters

During the respiratory process,as electrons are passed through the electron transport chain,a force is generated across a biological membrane to drive the synthesis of ATP by a membrane associated ATP synthase.

Enzymes increase the rate of a biochemical reaction by lowering the _ _ of the reaction.

The most common lipids in the cell are synthesized from _ and __.

The use of an exogenous terminal electron acceptor other than oxygen is called .