Brock Biology of Microorganisms Chapter 3
Exam Questions With Correct Answers
The sum of all biosynthetic reactions in a cell is known as
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A) metabolism.
|
B) anabolism.
|
C) catabolism.
|
D) synthatabolism. - CORRECT ANSWER✔✔-B) anabolism
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Based on the functional roles of phosphate in various microbial
| | | | | | | | | |
metabolisms, deduce which compounds phosphate exists as in
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microorganisms.
A) organic compounds
| |
B) inorganic compounds
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C) both organic and inorganic compounds
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D) neither organic nor inorganic compounds - CORRECT ANSWER✔✔-C)
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both organic and inorganic compounds
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Which of the following would be used by a chemoorganotroph for
| | | | | | | | | | |
energy?
A) C2H3O2-
|
,B) H2
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C) CO2
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D) H+ - CORRECT ANSWER✔✔-A) C2H3O2-
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Which of the following statements is FALSE?
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A) Most bacteria are capable of using ammonia as their sole nitrogen
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source.
B) Some bacteria are able to use nitrates or nitrogen gas as their
| | | | | | | | | | | | |
nitrogen source. |
C) Most available nitrogen is in organic forms.
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D) Nitrogen is a major component of proteins and nucleic acids. -
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CORRECT ANSWER✔✔-C) Most available nitrogen is in organic forms.
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All microorganisms require
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A) carbon, iron, and sodium.
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B) phosphorus, aluminum, and sodium.
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C) calcium, potassium, and magnesium.
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D) phosphorus, selenium, and sulfur. - CORRECT ANSWER✔✔-D)
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phosphorus, selenium, and sulfur. | | |
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 - CORRECT ANSWER✔✔-D) magnesium
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Based on your understanding of metabolism, generalize when an
| | | | | | | | |
enzyme's rate of activity can be changed.
| | | | | |
A) before enzyme production
| | |
B) during enzyme production
| | |
C) after enzyme production
| | |
D) at any point-before, during, or after enzyme production - CORRECT
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ANSWER✔✔-C) after enzyme production | | |
The change in Gibbs free energy for a particular reaction is MOST useful
| | | | | | | | | | | | |
in determining
|
A) the amount of energy catalysts required for biosynthesis or
| | | | | | | | | |
catabolism.
B) the potential metabolic reaction rate.
| | | | |
C) whether there will be a requirement or production of energy.
| | | | | | | | | |
D) energy stored in each compound. - CORRECT ANSWER✔✔-C)
| | | | | | | | |
whether there will be a requirement or production of energy.
| | | | | | | | |
Exam Questions With Correct Answers
The sum of all biosynthetic reactions in a cell is known as
| | | | | | | | | | |
A) metabolism.
|
B) anabolism.
|
C) catabolism.
|
D) synthatabolism. - CORRECT ANSWER✔✔-B) anabolism
| | | | |
Based on the functional roles of phosphate in various microbial
| | | | | | | | | |
metabolisms, deduce which compounds phosphate exists as in
| | | | | | | |
microorganisms.
A) organic compounds
| |
B) inorganic compounds
| |
C) both organic and inorganic compounds
| | | | |
D) neither organic nor inorganic compounds - CORRECT ANSWER✔✔-C)
| | | | | | | | |
both organic and inorganic compounds
| | | |
Which of the following would be used by a chemoorganotroph for
| | | | | | | | | | |
energy?
A) C2H3O2-
|
,B) H2
|
C) CO2
|
D) H+ - CORRECT ANSWER✔✔-A) C2H3O2-
| | | | |
Which of the following statements is FALSE?
| | | | | |
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. -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-C) Most available nitrogen is in organic forms.
| | | | | | | |
All microorganisms require
| |
A) carbon, iron, and sodium.
| | | |
B) phosphorus, aluminum, and sodium.
| | | |
C) calcium, potassium, and magnesium.
| | | |
D) phosphorus, selenium, and sulfur. - CORRECT ANSWER✔✔-D)
| | | | | | | |
phosphorus, selenium, and sulfur. | | |
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 - CORRECT ANSWER✔✔-D) magnesium
| | | | |
Based on your understanding of metabolism, generalize when an
| | | | | | | | |
enzyme's rate of activity can be changed.
| | | | | |
A) before enzyme production
| | |
B) during enzyme production
| | |
C) after enzyme production
| | |
D) at any point-before, during, or after enzyme production - CORRECT
| | | | | | | | | | |
ANSWER✔✔-C) after enzyme production | | |
The change in Gibbs free energy for a particular reaction is MOST useful
| | | | | | | | | | | | |
in determining
|
A) the amount of energy catalysts required for biosynthesis or
| | | | | | | | | |
catabolism.
B) the potential metabolic reaction rate.
| | | | |
C) whether there will be a requirement or production of energy.
| | | | | | | | | |
D) energy stored in each compound. - CORRECT ANSWER✔✔-C)
| | | | | | | | |
whether there will be a requirement or production of energy.
| | | | | | | | |
