Microbial Physiology MCQs with Answers

Microbial Physiology MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Microbial Physiology MCQs for Preparation.

The student can clear their concepts for Microbial Physiology online quiz by attempting it. Doing MCQs based Microbial Physiology will help you to check your understanding and identify areas of improvement.

Microbial Physiology Online MCQs with Answers

Which of the following organisms is responsible for causing tuberculosis?
a) Escherichia coli
b) Staphylococcus aureus
c) Mycobacterium tuberculosis
d) Streptococcus pyogenes

Answer
c) Mycobacterium tuberculosis

The process by which bacteria reproduce by dividing into two identical daughter cells is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
c) Binary fission

Which of the following is a type of bacteria that can survive in extreme environments such as hot springs?
a) Escherichia coli
b) Staphylococcus aureus
c) Bacillus subtilis
d) Thermus aquaticus

Answer
d) Thermus aquaticus

The process by which bacteria obtain energy from organic molecules in the absence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
a) Fermentation

Which of the following is a type of bacteria that can fix atmospheric nitrogen into a form that plants can use?
a) Escherichia coli
b) Staphylococcus aureus
c) Rhizobium leguminosarum
d) Streptococcus pneumoniae

Answer
c) Rhizobium leguminosarum

The process by which bacteria exchange genetic material through direct cell-to-cell contact is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
a) Conjugation

Which of the following is a type of bacteria that can convert atmospheric nitrogen into a form that plants can use?
a) Escherichia coli
b) Staphylococcus aureus
c) Azotobacter vinelandii
d) Streptococcus mutans

Answer
c) Azotobacter vinelandii

The process by which bacteria take up free DNA from their environment and incorporate it into their own genome is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
b) Transformation

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy from light and convert it into chemical energy is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
b) Photosynthesis

Which of the following is a type of bacteria that can produce spores and survive in harsh conditions?
a) Escherichia coli
b) Staphylococcus aureus
c) Clostridium botulinum
d) Streptococcus pneumoniae

Answer
c) Clostridium botulinum

The process by which bacteria exchange genetic material through viral-mediated transfer is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
d) Transduction

Which of the following is a type of bacteria that can convert milk sugar into lactic acid, contributing to the fermentation of dairy products?
a) Escherichia coli
b) Staphylococcus aureus
c) Lactobacillus acidophilus
d) Streptococcus mutans

Answer
c) Lactobacillus acidophilus

The process by which bacteria obtain energy by breaking down organic molecules in the presence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
c) Respiration

Which of the following is a type of bacteria that can convert ethanol into acetic acid, playing a role in the production of vinegar?
a) Escherichia coli
b) Staphylococcus aureus
c) Acetobacter aceti
d) Streptococcus pyogenes

Answer
c) Acetobacter aceti

The process by which bacteria convert nitrogen gas into ammonia, making it available for plants, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
a) Nitrogen fixation

Which of the following is a type of bacteria that can convert ammonia into nitrate, contributing to the nitrogen cycle?
a) Escherichia coli
b) Staphylococcus aureus
c) Nitrosomonas europaea
d) Streptococcus pneumoniae

Answer
c) Nitrosomonas europaea

The process by which bacteria convert nitrate into nitrogen gas, completing the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
c) Denitrification

Which of the following is a type of bacteria that can convert nitrate into nitrogen gas, contributing to the removal of excess nitrogen from ecosystems?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus mutans

Answer
c) Pseudomonas denitrificans

The process by which bacteria break down organic matter and release nutrients into the environment is called:
a) Decomposition
b) Fermentation
c) Respiration
d) Photosynthesis

Answer
a) Decomposition

Which of the following is a type of bacteria that can convert atmospheric nitrogen into a form that plants can use?
a) Escherichia coli
b) Staphylococcus aureus
c) Azotobacter vinelandii
d) Streptococcus mutans

Answer
c) Azotobacter vinelandii

The process by which bacteria convert ammonia into nitrate, contributing to the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
b) Nitrification

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy by breaking down organic molecules in the absence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
a) Fermentation

Which of the following is a type of bacteria that can produce antibiotics, contributing to the field of medicine?
a) Escherichia coli
b) Staphylococcus aureus
c) Streptomyces griseus
d) Streptococcus pneumoniae

Answer
c) Streptomyces griseus

The process by which bacteria obtain energy from light and convert it into chemical energy is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
b) Photosynthesis

Which of the following is a type of bacteria that can convert milk sugar into lactic acid, contributing to the fermentation of dairy products?
a) Escherichia coli
b) Staphylococcus aureus
c) Lactobacillus acidophilus
d) Streptococcus mutans

Answer
c) Lactobacillus acidophilus

The process by which bacteria exchange genetic material through direct cell-to-cell contact is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
a) Conjugation

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy by breaking down organic molecules in the presence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
c) Respiration

Which of the following is a type of bacteria that can convert ethanol into acetic acid, playing a role in the production of vinegar?
a) Escherichia coli
b) Staphylococcus aureus
c) Acetobacter aceti
d) Streptococcus pyogenes

Answer
c) Acetobacter aceti

The process by which bacteria take up free DNA from their environment and incorporate it into their own genome is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
b) Transformation

Which of the following is a type of bacteria that can convert ammonia into nitrate, contributing to the nitrogen cycle?
a) Escherichia coli
b) Staphylococcus aureus
c) Nitrosomonas europaea
d) Streptococcus pneumoniae

Answer
c) Nitrosomonas europaea

The process by which bacteria convert nitrate into nitrogen gas, completing the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
c) Denitrification

Which of the following is a type of bacteria that can convert nitrate into nitrogen gas, contributing to the removal of excess nitrogen from ecosystems?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus mutans

Answer
c) Pseudomonas denitrificans

The process by which bacteria break down organic matter and release nutrients into the environment is called:
a) Decomposition
b) Fermentation
c) Respiration
d) Photosynthesis

Answer
a) Decomposition

Which of the following is a type of bacteria that can convert atmospheric nitrogen into a form that plants can use?
a) Escherichia coli
b) Staphylococcus aureus
c) Azotobacter vinelandii
d) Streptococcus mutans

Answer
c) Azotobacter vinelandii

The process by which bacteria convert ammonia into nitrate, contributing to the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
b) Nitrification

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy by breaking down organic molecules in the absence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
a) Fermentation

Which of the following is a type of bacteria that can produce antibiotics, contributing to the field of medicine?
a) Escherichia coli
b) Staphylococcus aureus
c) Streptomyces griseus
d) Streptococcus pneumoniae

Answer
c) Streptomyces griseus

The process by which bacteria obtain energy from light and convert it into chemical energy is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
b) Photosynthesis

Which of the following is a type of bacteria that can convert milk sugar into lactic acid, contributing to the fermentation of dairy products?
a) Escherichia coli
b) Staphylococcus aureus
c) Lactobacillus acidophilus
d) Streptococcus mutans

Answer
c) Lactobacillus acidophilus

The process by which bacteria exchange genetic material through direct cell-to-cell contact is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
a) Conjugation

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy by breaking down organic molecules in the presence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
c) Respiration

Which of the following is a type of bacteria that can convert ethanol into acetic acid, playing a role in the production of vinegar?
a) Escherichia coli
b) Staphylococcus aureus
c) Acetobacter aceti
d) Streptococcus pyogenes

Answer
c) Acetobacter aceti

The process by which bacteria take up free DNA from their environment and incorporate it into their own genome is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
b) Transformation

Which of the following is a type of bacteria that can convert ammonia into nitrate, contributing to the nitrogen cycle?
a) Escherichia coli
b) Staphylococcus aureus
c) Nitrosomonas europaea
d) Streptococcus pneumoniae

Answer
c) Nitrosomonas europaea

The process by which bacteria convert nitrate into nitrogen gas, completing the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
c) Denitrification

Which of the following is a type of bacteria that can convert nitrate into nitrogen gas, contributing to the removal of excess nitrogen from ecosystems?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus mutans

Answer
c) Pseudomonas denitrificans

The process by which bacteria break down organic matter and release nutrients into the environment is called:
a) Decomposition
b) Fermentation
c) Respiration
d) Photosynthesis

Answer
a) Decomposition

Which of the following is a type of bacteria that can convert atmospheric nitrogen into a form that plants can use?
a) Escherichia coli
b) Staphylococcus aureus
c) Azotobacter vinelandii
d) Streptococcus mutans

Answer
c) Azotobacter vinelandii

The process by which bacteria convert ammonia into nitrate, contributing to the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
b) Nitrification

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy by breaking down organic molecules in the absence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
a) Fermentation

Which of the following is a type of bacteria that can produce antibiotics, contributing to the field of medicine?
a) Escherichia coli
b) Staphylococcus aureus
c) Streptomyces griseus
d) Streptococcus pneumoniae

Answer
c) Streptomyces griseus

The process by which bacteria obtain energy from light and convert it into chemical energy is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
b) Photosynthesis

Which of the following is a type of bacteria that can convert milk sugar into lactic acid, contributing to the fermentation of dairy products?
a) Escherichia coli
b) Staphylococcus aureus
c) Lactobacillus acidophilus
d) Streptococcus mutans

Answer
c) Lactobacillus acidophilus

The process by which bacteria exchange genetic material through direct cell-to-cell contact is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
a) Conjugation

Which of the following is a type of bacteria that can convert nitrite into nitrogen gas, helping to remove nitrogen from the environment?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus pyogenes

Answer
c) Pseudomonas denitrificans

The process by which bacteria obtain energy by breaking down organic molecules in the presence of oxygen is called:
a) Fermentation
b) Photosynthesis
c) Respiration
d) Transpiration

Answer
c) Respiration

Which of the following is a type of bacteria that can convert ethanol into acetic acid, playing a role in the production of vinegar?
a) Escherichia coli
b) Staphylococcus aureus
c) Acetobacter aceti
d) Streptococcus pyogenes

Answer
c) Acetobacter aceti

The process by which bacteria take up free DNA from their environment and incorporate it into their own genome is called:
a) Conjugation
b) Transformation
c) Binary fission
d) Transduction

Answer
b) Transformation

Which of the following is a type of bacteria that can convert ammonia into nitrate, contributing to the nitrogen cycle?
a) Escherichia coli
b) Staphylococcus aureus
c) Nitrosomonas europaea
d) Streptococcus pneumoniae

Answer
c) Nitrosomonas europaea

The process by which bacteria convert nitrate into nitrogen gas, completing the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
c) Denitrification

Which of the following is a type of bacteria that can convert nitrate into nitrogen gas, contributing to the removal of excess nitrogen from ecosystems?
a) Escherichia coli
b) Staphylococcus aureus
c) Pseudomonas denitrificans
d) Streptococcus mutans

Answer
c) Pseudomonas denitrificans

The process by which bacteria break down organic matter and release nutrients into the environment is called:
a) Decomposition
b) Fermentation
c) Respiration
d) Photosynthesis

Answer
a) Decomposition

Which of the following is a type of bacteria that can convert atmospheric nitrogen into a form that plants can use?
a) Escherichia coli
b) Staphylococcus aureus
c) Azotobacter vinelandii
d) Streptococcus mutans

Answer
c) Azotobacter vinelandii

The process by which bacteria convert ammonia into nitrate, contributing to the nitrogen cycle, is called:
a) Nitrogen fixation
b) Nitrification
c) Denitrification
d) Ammonification

Answer
b) Nitrification

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