Biology MCQs

Microbial Physiology and Metabolism MCQs with Answers

Which of the following is the primary energy source for most microorganisms?
a) Glucose
b) Oxygen
c) ATP
d) Light
Answer: a) Glucose

Which of the following processes allows microorganisms to convert glucose into energy in the absence of oxygen?
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Photosynthesis
Answer: a) Glycolysis

Which of the following metabolic pathways is responsible for the production of ATP in aerobic organisms?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Krebs cycle
Answer: c) Oxidative phosphorylation

The process of converting atmospheric nitrogen into a form usable by plants is called:
a) Nitrification
b) Denitrification
c) Nitrogen fixation
d) Ammonification
Answer: c) Nitrogen fixation

Which of the following is an example of a nitrogen-fixing bacterium?
a) Escherichia coli
b) Streptococcus pyogenes
c) Rhizobium leguminosarum
d) Staphylococcus aureus
Answer: c) Rhizobium leguminosarum

Which of the following metabolic processes involves the breakdown of complex organic molecules into simpler compounds with the release of energy?
a) Anabolism
b) Catabolism
c) Fermentation
d) Photosynthesis
Answer: b) Catabolism

Which of the following is a byproduct of anaerobic respiration in microorganisms?
a) Oxygen
b) Carbon dioxide
c) ATP
d) Water
Answer: b) Carbon dioxide

The process of breaking down glucose into pyruvate molecules is known as:
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Fermentation
Answer: a) Glycolysis

Which of the following metabolic pathways is responsible for the production of ATP in anaerobic organisms?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Krebs cycle
Answer: b) Fermentation

The process by which microorganisms convert light energy into chemical energy is called:
a) Fermentation
b) Respiration
c) Photosynthesis
d) Denitrification
Answer: c) Photosynthesis

Which of the following is the final electron acceptor in aerobic respiration?
a) Oxygen
b) Carbon dioxide
c) Water
d) Nitrogen
Answer: a) Oxygen

Which of the following metabolic processes involves the synthesis of complex organic molecules from simpler compounds?
a) Anabolism
b) Catabolism
c) Fermentation
d) Photosynthesis
Answer: a) Anabolism

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

Which of the following is an example of a microorganism capable of denitrification?
a) Escherichia coli
b) Streptococcus pyogenes
c) Pseudomonas aeruginosa
d) Staphylococcus aureus
Answer: c) Pseudomonas aeruginosa

Which of the following metabolic processes involves the conversion of organic compounds into simpler molecules with the release of energy?
a) Anabolism
b) Catabolism
c) Fermentation
d) Photosynthesis
Answer: b) Catabolism

Which of the following is the primary energy source for methanogenic archaea?
a) Glucose
b) Oxygen
c) Methane
d) Hydrogen
Answer: d) Hydrogen

The process by which microorganisms convert organic compounds into methane gas is called:
a) Methanogenesis
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Methanogenesis

Which of the following metabolic pathways is responsible for the production of ATP in methanogenic archaea?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Methanogenesis
Answer: d) Methanogenesis

The process by which microorganisms convert organic compounds into alcohol and carbon dioxide is called:
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Photosynthesis
Answer: b) Fermentation

Which of the following metabolic pathways is responsible for the production of ATP in lactic acid bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Krebs cycle
Answer: b) Fermentation

Which of the following is the primary energy source for lactic acid bacteria?
a) Glucose
b) Oxygen
c) Lactic acid
d) Ethanol
Answer: a) Glucose

The process by which microorganisms convert organic compounds into lactic acid is called:
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Photosynthesis
Answer: b) Fermentation

Which of the following metabolic pathways is responsible for the production of ATP in sulfate-reducing bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Sulfate reduction
Answer: d) Sulfate reduction

The process by which microorganisms convert sulfate into hydrogen sulfide gas is called:
a) Sulfate reduction
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Sulfate reduction

Which of the following metabolic pathways is responsible for the production of ATP in photosynthetic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Photosynthesis
Answer: d) Photosynthesis

The process by which microorganisms convert light energy into chemical energy is called:
a) Fermentation
b) Respiration
c) Photosynthesis
d) Denitrification
Answer: c) Photosynthesis

Which of the following is the primary energy source for photosynthetic bacteria?
a) Glucose
b) Oxygen
c) Light
d) Carbon dioxide
Answer: c) Light

The process by which microorganisms convert organic compounds into acetic acid and carbon dioxide is called:
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Photosynthesis
Answer: b) Fermentation

Which of the following metabolic pathways is responsible for the production of ATP in acetogenic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Acetogenesis
Answer: d) Acetogenesis

The process by which microorganisms convert organic compounds into acetic acid and hydrogen gas is called:
a) Acetogenesis
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Acetogenesis

Which of the following metabolic pathways is responsible for the production of ATP in methanotrophic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Methanotrophy
Answer: d) Methanotrophy

The process by which microorganisms convert methane gas into energy is called:
a) Methanogenesis
b) Fermentation
c) Respiration
d) Methanotrophy
Answer: d) Methanotrophy

Which of the following metabolic pathways is responsible for the production of ATP in halophilic archaea?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Halophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-salt environments is called:
a) Halophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Halophily

Which of the following metabolic pathways is responsible for the production of ATP in thermophilic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Thermophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-temperature environments is called:
a) Thermophily
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Thermophily

Which of the following metabolic pathways is responsible for the production of ATP in acidophilic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Acidophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in acidic environments is called:
a) Acidophily
b) Fermentation
c) Respiration
d) Photosynthesis
Answer: a) Acidophily

Which of the following metabolic pathways is responsible for the production of ATP in alkaliphilic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Alkaliphily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in alkaline environments is called:
a) Alkaliphily
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Alkaliphily

Which of the following metabolic pathways is responsible for the production of ATP in psychrophilic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Psychrophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in cold environments is called:
a) Psychrophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Psychrophily

Which of the following metabolic pathways is responsible for the production of ATP in acidophilic archaea?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Acidophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in acidic environments is called:
a) Acidophily
b) Fermentation
c) Respiration
d) Photosynthesis
Answer: a) Acidophily

Which of the following metabolic pathways is responsible for the production of ATP in alkaliphilic archaea?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Alkaliphily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in alkaline environments is called:
a) Alkaliphily
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Alkaliphily

Which of the following metabolic pathways is responsible for the production of ATP in thermophilic archaea?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Thermophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-temperature environments is called:
a) Thermophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Thermophily

Which of the following metabolic pathways is responsible for the production of ATP in halophilic archaea?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Halophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-salt environments is called:
a) Halophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Halophily

Which of the following metabolic pathways is responsible for the production of ATP in osmophilic yeast?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Osmophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-sugar environments is called:
a) Osmophily
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Osmophily

Which of the following metabolic pathways is responsible for the production of ATP in aciduric bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Aciduricity
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in acidic environments is called:
a) Aciduricity
b) Fermentation
c) Respiration
d) Photosynthesis
Answer: a) Aciduricity

Which of the following metabolic pathways is responsible for the production of ATP in alkaluric bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Alkaluricity
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in alkaline environments is called:
a) Alkaluricity
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Alkaluricity

Which of the following metabolic pathways is responsible for the production of ATP in piezophilic bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Piezophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-pressure environments is called:
a) Piezophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Piezophily

Which of the following metabolic pathways is responsible for the production of ATP in acidophilic fungi?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Acidophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in acidic environments is called:
a) Acidophily
b) Fermentation
c) Respiration
d) Photosynthesis
Answer: a) Acidophily

Which of the following metabolic pathways is responsible for the production of ATP in alkaliphilic fungi?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Alkaliphily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in alkaline environments is called:
a) Alkaliphily
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Alkaliphily

Which of the following metabolic pathways is responsible for the production of ATP in thermophilic fungi?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Thermophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-temperature environments is called:
a) Thermophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Thermophily

Which of the following metabolic pathways is responsible for the production of ATP in psychrophilic fungi?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Psychrophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in cold environments is called:
a) Psychrophily
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Psychrophily

Which of the following metabolic pathways is responsible for the production of ATP in halophilic fungi?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Halophily
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-salt environments is called:
a) Halophily
b) Fermentation
c) Respiration
d) Denitrification
Answer: a) Halophily

Which of the following metabolic pathways is responsible for the production of ATP in radiation-resistant bacteria?
a) Glycolysis
b) Fermentation
c) Oxidative phosphorylation
d) Radiotolerance
Answer: c) Oxidative phosphorylation

The process by which microorganisms convert organic compounds into energy in high-radiation environments is called:
a) Radiotolerance
b) Fermentation
c) Respiration
d) Nitrogen fixation
Answer: a) Radiotolerance

 

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button