Brock Biology of Microorganisms Chapter 3 Exam Questions With Correct Answers
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Brock Biology of Microorganisms
Institution
Brock Biology Of Microorganisms
Brock Biology of Microorganisms Chapter 3
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. - answerB) anabolism
Based on the functional roles of phosphate in various microbial metabo...
Brock Biology of Microorganisms Chapter 3
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. - 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 - 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+ - 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.
D) Nitrogen is a major component of proteins and nucleic acids. - 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. - 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 - 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 - 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. - answer✔C) whether there will be a requirement or
production of energy.
Which is an example of a micronutrient?
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