Question 1

Essential amino acids are amino acids that cannot be synthesized by an organism and so must be provided as nutrients.

Accepted Answer

A) True 
 B)False  True

Question 2

Where is the majority of ATP generated in prokaryotic cells?

Accepted Answer

A)  in the cytoplasmic membrane 
B)  in the cytosol 
C)  in the thylakoids 
D)  in the inner mitochondrial membrane 
E)  on ribosomes 
A)  in the cytoplasmic membrane 
B)  in the cytosol 
C)  in the thylakoids 
D)  in the inner mitochondrial membrane 
E)  on ribosomes A

Question 3

Chemical reactions that can proceed toward either anabolism or catabolism are called

Accepted Answer

A)  glycolytic. 
B)  light-independent. 
C)  synthetic. 
D)  cyclic. 
E)  amphibolic. 
A)  glycolytic. 
B)  light-independent. 
C)  synthetic. 
D)  cyclic. 
E)  amphibolic. E

Question 4

Which of the following statements concerning glycolysis is TRUE?

Accepted Answer

A)  It produces ATP by oxidative phosphorylation. 
B)  It occurs in the cell membranes of bacteria. 
C)  It requires the input of ATP and produces ATP. 
D)  It is an alternative to fermentation. 
E)  It involves ribulose 5-phosphate as an intermediate. 
A)  It produces ATP by oxidative phosphorylation. 
B)  It occurs in the cell membranes of bacteria. 
C)  It requires the input of ATP and produces ATP. 
D)  It is an alternative to fermentation. 
E)  It involves ribulose 5-phosphate as an intermediate.

Question 5

Which of the following is a fermentation product useful in the manufacture of cheese?

Accepted Answer

A)  acetic acid 
B)  ammonia 
C)  ethanol 
D)  lactic acid 
E)  pyruvic acid 
A)  acetic acid 
B)  ammonia 
C)  ethanol 
D)  lactic acid 
E)  pyruvic acid

Question 6

The (activation /inhibition/saturation)point of an enzyme is reached when all active sites have bound substrate molecules.

Accepted Answer

The answer of The (activation /inhibition/saturation)point of an enzyme is...

Question 7

Substrate-level phosphorylation occurs during which of the following stage(s)of glucose catabolism?

Accepted Answer

A)  formation of acetyl-CoA 
B)  lysis stage of glycolysis 
C)  energy-conservation stage of glycolysis 
D)  Krebs cycle 
E)  formation of acetyl-CoA and the Krebs cycle 
A)  formation of acetyl-CoA 
B)  lysis stage of glycolysis 
C)  energy-conservation stage of glycolysis 
D)  Krebs cycle 
E)  formation of acetyl-CoA and the Krebs cycle

Question 8

All of the following are forms of oxidation EXCEPT

Accepted Answer

A)  loss of an electron. 
B)  loss of hydrogen atom. 
C)  a dehydrogenation event. 
D)  substrate-level phosphorylation. 
E)  gain of an oxygen atom and its electrons. 
A)  loss of an electron. 
B)  loss of hydrogen atom. 
C)  a dehydrogenation event. 
D)  substrate-level phosphorylation. 
E)  gain of an oxygen atom and its electrons.

Question 9

What is the major product of the Calvin-Benson cycle that can then be used to form glucose?

Accepted Answer

A)  CO2 
B)  ATP 
C)  RuBP 
D)  glyceraldehyde 3-phosphate 
E)  NADPH 
A)  CO2 
B)  ATP 
C)  RuBP 
D)  glyceraldehyde 3-phosphate 
E)  NADPH

Question 10

The conversion of phosphoenol pyruvic acid (PEP)to pyruvic acid results in the production of an ATP.This reaction is an example of (substrate-level/oxidative/reductive)phosphorylation.

Accepted Answer

The answer of The conversion of phosphoenol pyruvic acid (PEP)to...

Question 11

When a cell forms an amino acid by adding an amine group derived from ammonia to a precursor metabolite,this process is called

Accepted Answer

A)  amination. 
B)  transamination. 
C)  reduction. 
D)  polymerization. 
E)  deamination. 
A)  amination. 
B)  transamination. 
C)  reduction. 
D)  polymerization. 
E)  deamination.

Question 12

Anabolic reactions may be characterized as

Accepted Answer

A)  exergonic. 
B)  breaking large molecules into smaller molecules. 
C)  forming large molecules from smaller molecules. 
D)  producing ATP. 
E)  breaking large molecules into smaller molecules to produce ATP. 
A)  exergonic. 
B)  breaking large molecules into smaller molecules. 
C)  forming large molecules from smaller molecules. 
D)  producing ATP. 
E)  breaking large molecules into smaller molecules to produce ATP.

Question 13

The process illustrated in the figure above is an example of a(n)________ reaction.

Accepted Answer

A)  amination 
B)  reduction 
C)  oxidation 
D)  transamination 
E)  transferase 
A)  amination 
B)  reduction 
C)  oxidation 
D)  transamination 
E)  transferase

Question 14

Significant amounts of the NADPH required for the Calvin-Benson cycle are produced during the (cyclic/noncyclic)photophosphorylation reactions of photosynthesis.

Accepted Answer

The answer of Significant amounts of the NADPH required for...

Question 15

A(n)(oxidation/reduction/transport)reaction is one in which a molecule accepts an electron.

Accepted Answer

The answer of A(n)(oxidation/reduction/transport)reaction is one in which a molecule...

Question 16

Many vitamins are important ________ of enzymes.

Accepted Answer

A)  protein cofactors 
B)  coenzymes 
C)  allosteric inhibitors 
D)  competitive inhibitors 
E)  activators 
A)  protein cofactors 
B)  coenzymes 
C)  allosteric inhibitors 
D)  competitive inhibitors 
E)  activators

Question 17

Some photosynthetic bacteria use chlorophylls other than chlorophyll a.

Accepted Answer

A) True 
 B)False

Question 18

Beta-oxidation of fatty acids produces (acetic acid/acetyl-CoA/glycerol).

Accepted Answer

The answer of Beta-oxidation of fatty acids produces (acetic acid/acetyl-CoA/glycerol)....

Question 19

How many ATP molecules can theoretically be produced from the NADH generated by the catabolism of a molecule of glucose during aerobic respiration?

Accepted Answer

A)  34 
B)  30 
C)  38 
D)  36 
E)  4 
A)  34 
B)  30 
C)  38 
D)  36 
E)  4

Question 20

Some bacteria use (acetyl-CoA/DHAP/TMAO)as a final electron receptor,resulting in a detectable odor.

Accepted Answer

The answer of Some bacteria use (acetyl-CoA/DHAP/TMAO)as a final electron...

Exam 5: Microbial Metabolism

Essential amino acids are amino acids that cannot be synthesized by an organism and so must be provided as nutrients.

Where is the majority of ATP generated in prokaryotic cells?

Chemical reactions that can proceed toward either anabolism or catabolism are called

Which of the following statements concerning glycolysis is TRUE?

Which of the following is a fermentation product useful in the manufacture of cheese?

The (activation /inhibition/saturation)point of an enzyme is reached when all active sites have bound substrate molecules.

Substrate-level phosphorylation occurs during which of the following stage(s)of glucose catabolism?

All of the following are forms of oxidation EXCEPT

What is the major product of the Calvin-Benson cycle that can then be used to form glucose?

The conversion of phosphoenol pyruvic acid (PEP)to pyruvic acid results in the production of an ATP.This reaction is an example of (substrate-level/oxidative/reductive)phosphorylation.

When a cell forms an amino acid by adding an amine group derived from ammonia to a precursor metabolite,this process is called

Anabolic reactions may be characterized as

The process illustrated in the figure above is an example of a(n)________ reaction.

Significant amounts of the NADPH required for the Calvin-Benson cycle are produced during the (cyclic/noncyclic)photophosphorylation reactions of photosynthesis.

A(n)(oxidation/reduction/transport)reaction is one in which a molecule accepts an electron.

Many vitamins are important ________ of enzymes.

Some photosynthetic bacteria use chlorophylls other than chlorophyll a.

Beta-oxidation of fatty acids produces (acetic acid/acetyl-CoA/glycerol).

How many ATP molecules can theoretically be produced from the NADH generated by the catabolism of a molecule of glucose during aerobic respiration?

Some bacteria use (acetyl-CoA/DHAP/TMAO)as a final electron receptor,resulting in a detectable odor.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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