C HAPTER 3: M ICROBIAL M ETABOLISM
Test Bank for Brock Biology of Microorganism 16th Edition by Michael T.
Madigan
3.1 Multiple Choice Questions
1. The prokaryotic transport system that involves a substrate -binding protein,
a membrane-integrated transporter, and an ATP-hydrol yzing protein is
A) the ABC transport system.
B) group translocation.
C) s ymport.
D) simple transport.
2. Based on the functional roles of phosphate in various microbial
metabolisms, which of the following compounds most likel y contain
phosphate?
A) organic compounds
B) inorganic compounds
C) both organic and inorganic compounds
D) neither organic nor inorganic compounds
3. Which of the following would be used by a chemoorganotroph for energy?
A) C2H3O2-
B) H2
C) CO2
D) H+
4. Which of the following statements is FAL SE?
, A) Most bacteria are capable of using ammonia as their sole nitrogen
source.
B) Some bacteria are able to use nitrates or nitrogen gas as their
nitrogen source.
C) Most available nitrogen is in organic forms.
D) Nitrogen is a major component of proteins and nucleic acids.
5. Which element functions BOTH as an enzyme cofactor and as a stabilizer
of ribosomes and nucleic acids?
A) iron
B) hydrogen
C) zinc
D) magnesium
6. Based on your understanding of metabolism, generalize w hen an enz ymeʹs
rate of activit y can be changed.
A) before enz yme production
B) during enz yme production
C) after enz yme production
D) at any point —before, during, or after enzyme production
7. Aseptic technique refers to
A) the microbial inoculum placed into a test tube or onto a Petri plate.
B) a series of practices to avoid contamination.
C) the autoclave and other sterilizing procedures.
D) cleanliness in the laboratory.
8. A chemoorganotroph and a chemolithotroph in the same environment
would NOT compete for
A) oxygen.
B) carbon.
C) nitrogen.
, D) phosphorous.
9. The sum of all biosynthetic reactions in a cell is known as
A) metabolism.
B) anabolism.
C) catabolism.
D) s ynthatabolism.
10.If ΔG0ʹ is negative, the reaction is
A) exergonic and requires the input of energy.
B) endergonic and requires the input of energy.
C) exergonic and energy will be released.
D) endergonic and energy will be released.
11.A chemoorganotroph and a photoautotroph in the same environment would
NOT compete for
A) oxygen.
B) carbon.
C) nitrogen.
D) carbon and oxygen.
12.The Embden-Meyerhof-Parnas pathway is another name for
A) the citric acid cycle.
B) gl ycol ysis.
C) electron transport.
D) NADH production.
13.All of the following are non -protein electron carriers EXCEPT
A) FADH2.
B) FMNH2.
C) cytochromes.
D) quinones.
Test Bank for Brock Biology of Microorganism 16th Edition by Michael T.
Madigan
3.1 Multiple Choice Questions
1. The prokaryotic transport system that involves a substrate -binding protein,
a membrane-integrated transporter, and an ATP-hydrol yzing protein is
A) the ABC transport system.
B) group translocation.
C) s ymport.
D) simple transport.
2. Based on the functional roles of phosphate in various microbial
metabolisms, which of the following compounds most likel y contain
phosphate?
A) organic compounds
B) inorganic compounds
C) both organic and inorganic compounds
D) neither organic nor inorganic compounds
3. Which of the following would be used by a chemoorganotroph for energy?
A) C2H3O2-
B) H2
C) CO2
D) H+
4. Which of the following statements is FAL SE?
, A) Most bacteria are capable of using ammonia as their sole nitrogen
source.
B) Some bacteria are able to use nitrates or nitrogen gas as their
nitrogen source.
C) Most available nitrogen is in organic forms.
D) Nitrogen is a major component of proteins and nucleic acids.
5. Which element functions BOTH as an enzyme cofactor and as a stabilizer
of ribosomes and nucleic acids?
A) iron
B) hydrogen
C) zinc
D) magnesium
6. Based on your understanding of metabolism, generalize w hen an enz ymeʹs
rate of activit y can be changed.
A) before enz yme production
B) during enz yme production
C) after enz yme production
D) at any point —before, during, or after enzyme production
7. Aseptic technique refers to
A) the microbial inoculum placed into a test tube or onto a Petri plate.
B) a series of practices to avoid contamination.
C) the autoclave and other sterilizing procedures.
D) cleanliness in the laboratory.
8. A chemoorganotroph and a chemolithotroph in the same environment
would NOT compete for
A) oxygen.
B) carbon.
C) nitrogen.
, D) phosphorous.
9. The sum of all biosynthetic reactions in a cell is known as
A) metabolism.
B) anabolism.
C) catabolism.
D) s ynthatabolism.
10.If ΔG0ʹ is negative, the reaction is
A) exergonic and requires the input of energy.
B) endergonic and requires the input of energy.
C) exergonic and energy will be released.
D) endergonic and energy will be released.
11.A chemoorganotroph and a photoautotroph in the same environment would
NOT compete for
A) oxygen.
B) carbon.
C) nitrogen.
D) carbon and oxygen.
12.The Embden-Meyerhof-Parnas pathway is another name for
A) the citric acid cycle.
B) gl ycol ysis.
C) electron transport.
D) NADH production.
13.All of the following are non -protein electron carriers EXCEPT
A) FADH2.
B) FMNH2.
C) cytochromes.
D) quinones.
