Question 1

In noncyclic photophosphorylation, o2 is released from

Accepted Answer

A)  H2O. 
B)  sunlight. 
C)  C6H12O6. 
D)  chlorophyll. 
E)  Co2. 
A)  H2O. 
B)  sunlight. 
C)  C6H12O6. 
D)  chlorophyll. 
E)  Co2. A

Question 2

Cyanobacteria are a type of

Accepted Answer

A)  chemoautotroph. 
B)  chemoheterotroph. 
C)  photoautotroph. 
D)  photoheterotroph. 
A)  chemoautotroph. 
B)  chemoheterotroph. 
C)  photoautotroph. 
D)  photoheterotroph. C

Question 3

Which of the following uses Co2 for carbon and H2 for energy?

Accepted Answer

A)  chemoautotroph 
B)  chemoheterotroph 
C)  photoautotroph 
D)  photoheterotroph 
A)  chemoautotroph 
B)  chemoheterotroph 
C)  photoautotroph 
D)  photoheterotroph A

Question 4

Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to

Accepted Answer

A)  decrease. 
B)  increase. 
C)  stay the same. 
A)  decrease. 
B)  increase. 
C)  stay the same.

Question 5

Figure 5.5   Which of the graphs in Figure 5.5 best illustrates the activity of an enzyme that is saturated with substrate?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  e 
A)  a 
B)  b 
C)  c 
D)  d 
E)  e

Question 6

Explain the overall purpose of metabolic pathways.

Accepted Answer

Metabolic pathways serve the overall pur

Question 7

Once an enzyme has converted substrates into products, the active site reverts back to its original form.

Accepted Answer

A) True 
 B)False

Question 8

Both respiration and photosynthesis require the use of an electron transport chain.

Accepted Answer

A) True 
 B)False

Question 9

Which statements correspond to amphibolic pathways? 1. anabolic and catabolic reactions are joined through common intermediate
2) shared metabolic pathways
3) Feedback inhibition can help regulate rates of reactions
4) both types of reactions are necessary but do not occur simultaneously

Accepted Answer

A)  2, 3, 4 
B)  1, 2, 3, 4 
C)  1, 2, 3 
D)  1 only 
E)  2, 4 
A)  2, 3, 4 
B)  1, 2, 3, 4 
C)  1, 2, 3 
D)  1 only 
E)  2, 4

Question 10

Which of the following uses glucose for carbon and energy?

Accepted Answer

A)  chemoautotroph 
B)  chemoheterotroph 
C)  photoautotroph 
D)  photoheterotroph 
A)  chemoautotroph 
B)  chemoheterotroph 
C)  photoautotroph 
D)  photoheterotroph

Question 11

Which biochemical process is NOT used during glycolysis?

Accepted Answer

A)  substrate-level phosphorylation 
B)  beta oxidation 
C)  oxidation-reduction 
D)  carbohydrate catabolism 
E)  enzymatic reactions 
A)  substrate-level phosphorylation 
B)  beta oxidation 
C)  oxidation-reduction 
D)  carbohydrate catabolism 
E)  enzymatic reactions

Question 12

Which of the following is TRUE about this reaction? NO3-+ 2H+ Pseudomonas No2- + H2O Nitrate ion Nitrite ion

Accepted Answer

A)  This process requires o2. 
B)  This process requires the entire electron transport system. 
C)  This process requires light. 
D)  This process requires o2 and the electron transport system. 
E)  This process occurs anaerobically. 
A)  This process requires o2. 
B)  This process requires the entire electron transport system. 
C)  This process requires light. 
D)  This process requires o2 and the electron transport system. 
E)  This process occurs anaerobically.

Question 13

A strictly fermentative bacterium produces energy

Accepted Answer

A)  only in the presence of oxygen. 
B)  by aerobic respiration only. 
C)  by fermentation or aerobic respiration. 
D)  only in the absence of oxygen. 
E)  by glycolysis only. 
A)  only in the presence of oxygen. 
B)  by aerobic respiration only. 
C)  by fermentation or aerobic respiration. 
D)  only in the absence of oxygen. 
E)  by glycolysis only.

Question 14

Which of the following statements regarding metabolism is FALSE?

Accepted Answer

A)  ATP is formed in catabolic reactions. 
B)  Heat may be released in both anabolic and catabolic reactions. 
C)  ADP is formed in anabolic reactions. 
D)  Anabolic reactions are degradative. 
A)  ATP is formed in catabolic reactions. 
B)  Heat may be released in both anabolic and catabolic reactions. 
C)  ADP is formed in anabolic reactions. 
D)  Anabolic reactions are degradative.

Question 15

Which of the following is NOT necessary for respiration?

Accepted Answer

A)  cytochromes 
B)  a source of electrons 
C)  quinones 
D)  flavoproteins 
E)  oxygen 
A)  cytochromes 
B)  a source of electrons 
C)  quinones 
D)  flavoproteins 
E)  oxygen

Question 16

Carbon fixation occurs during the light-independent phase of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 17

Differentiate the following two laboratory tests: starch hydrolysis and starch fermentation.

Accepted Answer

Starch hydrolysis and starch fermentatio

Question 18

Which of the following statements about photophosphorylation is FALSE?

Accepted Answer

A)  Light liberates an electron from chlorophyll. 
B)  It occurs in photosynthesizing cells. 
C)  It requires Co2. 
D)  The oxidation of carrier molecules releases energy. 
E)  Energy from oxidation reactions is used to generate ATP from ADP. 
A)  Light liberates an electron from chlorophyll. 
B)  It occurs in photosynthesizing cells. 
C)  It requires Co2. 
D)  The oxidation of carrier molecules releases energy. 
E)  Energy from oxidation reactions is used to generate ATP from ADP.

Question 19

Glycolysis is utilized by cells in both respiration and fermentation.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following has bacteriochlorophylls and uses alcohols for carbon?

Accepted Answer

A)  chemoautotroph 
B)  chemoheterotroph 
C)  photoautotroph 
D)  photoheterotroph 
A)  chemoautotroph 
B)  chemoheterotroph 
C)  photoautotroph 
D)  photoheterotroph

Exam 5: Microbial Metabolism

In noncyclic photophosphorylation, o2 is released from

Cyanobacteria are a type of

Which of the following uses Co2 for carbon and H2 for energy?

Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to

Figure 5.5 Which of the graphs in Figure 5.5 best illustrates the activity of an enzyme that is saturated with substrate?

Explain the overall purpose of metabolic pathways.

Once an enzyme has converted substrates into products, the active site reverts back to its original form.

Both respiration and photosynthesis require the use of an electron transport chain.

Which statements correspond to amphibolic pathways? 1. anabolic and catabolic reactions are joined through common intermediate 2) shared metabolic pathways 3) Feedback inhibition can help regulate rates of reactions 4) both types of reactions are necessary but do not occur simultaneously

Which of the following uses glucose for carbon and energy?

Which biochemical process is NOT used during glycolysis?

Which of the following is TRUE about this reaction? NO3-+ 2H+ Pseudomonas No2- + H2O Nitrate ion Nitrite ion

A strictly fermentative bacterium produces energy

Which of the following statements regarding metabolism is FALSE?

Which of the following is NOT necessary for respiration?

Carbon fixation occurs during the light-independent phase of photosynthesis.

Differentiate the following two laboratory tests: starch hydrolysis and starch fermentation.

Which of the following statements about photophosphorylation is FALSE?

Glycolysis is utilized by cells in both respiration and fermentation.

Which of the following has bacteriochlorophylls and uses alcohols for carbon?

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic Cells

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Viruses, Viroids, and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Disease of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

Filters

In noncyclic photophosphorylation, o₂ is released from

Which of the following uses Co₂ for carbon and H₂ for energy?

Which of the following is TRUE about this reaction? NO3-+ 2H+ Pseudomonas No₂- + H₂O Nitrate ion Nitrite ion