Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

A)  ribulose bisphosphate (RuBP) 
B)  adenosine triphosphate (ATP) 
C)  NADPH 
D)  glyceraldehyde 3-phosphate (G3P) 
E)  carbon dioxide (CO2) 
A)  ribulose bisphosphate (RuBP) 
B)  adenosine triphosphate (ATP) 
C)  NADPH 
D)  glyceraldehyde 3-phosphate (G3P) 
E)  carbon dioxide (CO2)

Question 3

Many metabolites for anabolic pathways are produced by the pathway.

Accepted Answer

A)  pentose-phosphate 
B)  Entner-Doudoroff 
C)  beta-oxidation 
D)  glycolytic 
E)  chemiosmosis 
A)  pentose-phosphate 
B)  Entner-Doudoroff 
C)  beta-oxidation 
D)  glycolytic 
E)  chemiosmosis

Question 4

Changes in can be useful in analyzing microbesʹ ability to ferment carbohydrates.

Accepted Answer

A)  pH 
B)  osmotic pressure 
C)  temperature 
D)  oxygen use 
E)  smell 
A)  pH 
B)  osmotic pressure 
C)  temperature 
D)  oxygen use 
E)  smell

Question 5

Describe the mechanism of feedback inhibition and the role this process plays in controlling enzyme activity.

Accepted Answer

Feedback inhibition is also known as neg

Question 6

A catabolic process which occurs in eukaryotic mitochondria is

Accepted Answer

A)  the Calvin-Benson cycle. 
B)  deamination. 
C)  the Entner-Doudoroff pathway. 
D)  beta-oxidation. 
E)  fermentation. 
A)  the Calvin-Benson cycle. 
B)  deamination. 
C)  the Entner-Doudoroff pathway. 
D)  beta-oxidation. 
E)  fermentation.

Question 7

Which of the following statements concerning glycolysis is TRUE?

Accepted Answer

A)  Glycolysis both requires the input of ATP and produces ATP. 
B)  Glycolysis is an alternative to fermentation. 
C)  Glycolysis occurs in the cell membranes of bacteria. 
D)  Ribulose 5-phosphate is an intermediate of glycolysis. 
E)  Glycolysis produces ATP by oxidative phosphorylation. 
A)  Glycolysis both requires the input of ATP and produces ATP. 
B)  Glycolysis is an alternative to fermentation. 
C)  Glycolysis occurs in the cell membranes of bacteria. 
D)  Ribulose 5-phosphate is an intermediate of glycolysis. 
E)  Glycolysis produces ATP by oxidative phosphorylation.

Question 8

Photosystems are assembled in

Accepted Answer

A)  cristae. 
B)  stroma. 
C)  thylakoids. 
D)  grana. 
E)  cytoplasm. 
A)  cristae. 
B)  stroma. 
C)  thylakoids. 
D)  grana. 
E)  cytoplasm.

Question 9

Which of the following can be the final electron acceptor in anaerobic respiration in bacteria?

Accepted Answer

A)  pyruvic acid only 
B)  sulfate only 
C)  nitrate only 
D)  both nitrate and sulfate 
E)  nitrate, pyruvic acid, and sulfate 
A)  pyruvic acid only 
B)  sulfate only 
C)  nitrate only 
D)  both nitrate and sulfate 
E)  nitrate, pyruvic acid, and sulfate

Question 10

Gluconeogenesis reactions are generally highly endergonic.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following products of glucose catabolism is a substrate for fatty acid synthesis?

Accepted Answer

A)  phosphoglyceric acid 
B)  pyruvic acid 
C)  acetyl-CoA 
D)  succinyl-CoA 
E)  oxaloacetate 
A)  phosphoglyceric acid 
B)  pyruvic acid 
C)  acetyl-CoA 
D)  succinyl-CoA 
E)  oxaloacetate

Question 12

The molecule that an enzyme acts upon is known as its

Accepted Answer

A)  holoenzyme. 
B)  catalyst. 
C)  coenzyme. 
D)  substrate. 
E)  apoenzyme. 
A)  holoenzyme. 
B)  catalyst. 
C)  coenzyme. 
D)  substrate. 
E)  apoenzyme.

Question 13

Explain why the ATP yield from processes such as cellular respiration is generally given as a theoretical number.

Accepted Answer

The maximum yield of ATP from a single m

Question 14

During the synthesis of acetyl-CoA from pyruvic acid, is produced.

Accepted Answer

A)  H2O 
B)  FADH2 
C)  NADH 
D)  acetic acid 
E)  ATP 
A)  H2O 
B)  FADH2 
C)  NADH 
D)  acetic acid 
E)  ATP

Question 15

The assembly of carbon dioxide and water into carbohydrates occurs in the process known as

Accepted Answer

A)  photosynthesis. 
B)  chemiosmosis. 
C)  gluconeogenesis. 
D)  fermentation. 
E)  oxidation. 
A)  photosynthesis. 
B)  chemiosmosis. 
C)  gluconeogenesis. 
D)  fermentation. 
E)  oxidation.

Question 16

In reactions catalyzed by oxidoreductases an electron donor is

Accepted Answer

A)  unaltered. 
B)  oxidized. 
C)  synthesized. 
D)  reduced. 
E)  degraded. 
A)  unaltered. 
B)  oxidized. 
C)  synthesized. 
D)  reduced. 
E)  degraded.

Question 17

Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore, it is pathway.

Accepted Answer

A)  a reductive 
B)  an oxidative 
C)  an exergonic 
D)  an endergonic 
E)  neither an exergonic nor an endergonic 
A)  a reductive 
B)  an oxidative 
C)  an exergonic 
D)  an endergonic 
E)  neither an exergonic nor an endergonic

Question 18

The metabolic processes called fermentation

Accepted Answer

A)  are alternatives for the pentose phosphate pathway. 
B)  produce substrates for the Krebs cycle. 
C)  use an organic molecule as a final electron acceptor. 
D)  produce substrates for glycolysis. 
E)  occur only when oxygen is readily available. 
A)  are alternatives for the pentose phosphate pathway. 
B)  produce substrates for the Krebs cycle. 
C)  use an organic molecule as a final electron acceptor. 
D)  produce substrates for glycolysis. 
E)  occur only when oxygen is readily available.

Question 19

Substrate-level phosphorylation occurs during the stage(s) of glycolysis.

Accepted Answer

A)  lysis 
B)  energy-investment 
C)  energy-conservation 
D)  energy-investment and energy-conservation 
E)  energy-investment, lysis, and energy-conservation 
A)  lysis 
B)  energy-investment 
C)  energy-conservation 
D)  energy-investment and energy-conservation 
E)  energy-investment, lysis, and energy-conservation

Question 20

Which of the following is a by-product of the catabolism of proteins?

Accepted Answer

A)  carbon dioxide 
B)  lactic acid 
C)  ammonia 
D)  proteases 
E)  acetyl-CoA 
A)  carbon dioxide 
B)  lactic acid 
C)  ammonia 
D)  proteases 
E)  acetyl-CoA

Exam 5: Microbial Metabolism

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

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

Many metabolites for anabolic pathways are produced by the pathway.

Changes in can be useful in analyzing microbesʹ ability to ferment carbohydrates.

Describe the mechanism of feedback inhibition and the role this process plays in controlling enzyme activity.

A catabolic process which occurs in eukaryotic mitochondria is

Which of the following statements concerning glycolysis is TRUE?

Photosystems are assembled in

Which of the following can be the final electron acceptor in anaerobic respiration in bacteria?

Gluconeogenesis reactions are generally highly endergonic.

Which of the following products of glucose catabolism is a substrate for fatty acid synthesis?

The molecule that an enzyme acts upon is known as its

Explain why the ATP yield from processes such as cellular respiration is generally given as a theoretical number.

During the synthesis of acetyl-CoA from pyruvic acid, is produced.

The assembly of carbon dioxide and water into carbohydrates occurs in the process known as

In reactions catalyzed by oxidoreductases an electron donor is

Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore, it is pathway.

The metabolic processes called fermentation

Substrate-level phosphorylation occurs during the stage(s) of glycolysis.

Which of the following is a by-product of the catabolism of proteins?

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

Aids and Other Immune Disorders

Microbial Diseases of the Skin and Wounds

Microbial Diseases of the Nervous System and Eyes

Microbial Cardiovascular and Systemic Diseases

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

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