OPENSTAX MICROBIOLOGY TEST BANK
ACTUAL EXAM PAPER 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ Selective media.
Answer: Media that inhibits unwanted organisms.
◍ Diagnostic Tracers.
Answer: Used to trace positions of key atoms.
◍ Immersion Oil.
Answer: Used to enhance resolution under a microscope.
◍ Solution Concentration.
Answer: Amount of solute in a solvent.
◍ Swan-necked tubes.
Answer: Apparatus used by Pasteur to demonstrate microbial growth.
◍ Louis Pasteur.
Answer: Known for germ theory and vaccination development.
◍ Viruses.
Answer: Microorganisms with hereditary material in protein covering.
◍ Basic Dyes.
Answer: Simple dyes used for staining bacteria.
◍ Proteins.
Answer: Polymers of amino acids performing various functions.
◍ Industrial Microbiology.
Answer: Application of microorganisms in industrial processes.
◍ Proton Number.
, Answer: Determines the identity of an element.
◍ The formal system for classifying and naming organisms was developed by.
Answer: Carolus Linnaeus
◍ Streak plate method.
Answer: Technique for isolating bacteria on agar surfaces.
◍ Bioextraction.
Answer: Extraction of metals from ores using living organisms.
◍ Atrichous.
Answer: Lacking flagella entirely.
◍ Eukaryotes.
Answer: Organisms with a defined nucleus in cells.
◍ Loop dilution.
Answer: Technique for serially diluting samples in microbiology.
◍ Chikungunya virus.
Answer: Virus primarily affecting Florida and Southeastern coast.
◍ Species.
Answer: Group sharing similar characteristics and genetics.
◍ Microbes are associated with life-sustaining benefits as well as
life-threatening diseases..
Answer: TRUE
◍ Emerging diseases causes.
Answer: Human encroachment and mobility increase disease emergence.
◍ Fastidious.
Answer: Bacteria requiring special growth factors.
◍ Domains.
Answer: Three: Bacteria, Archaea, Eukarya.
◍ Electrons.
, Answer: Subatomic particles involved in chemical bonding.
◍ Capsule.
Answer: Protective layer preventing phagocytosis.
◍ Pyrimidines.
Answer: Another type of nitrogenous base in nucleic acids.
◍ Gram-positive Bacteria.
Answer: Bacteria with thick peptidoglycan layer.
◍ Proteobacteria Phylum.
Answer: Diverse group including many pathogenic bacteria.
◍ Amino acid.
Answer: Building blocks of proteins, contain amino and carboxyl groups.
◍ Differential Media.
Answer: Media distinguishing between different bacteria.
◍ Microorganisms.
Answer: Organisms too small to be seen unaided.
◍ Epidemiology.
Answer: Study of disease distribution and determinants.
◍ Domain Archaea.
Answer: Group of single-celled organisms without a nucleus.
◍ Capsule.
Answer: Gel-like layer surrounding some bacteria.
◍ Triglycerides.
Answer: Fats composed of glycerol and three fatty acids.
◍ Complex media.
Answer: Media with undefined chemical composition.
◍ Gas inclusions.
Answer: Structures for buoyancy in aquatic bacteria.
, ◍ Carbon Isotope.
Answer: Carbon atom with 6 protons and 8 neutrons.
◍ Development of emerging infectious disease can be a result of all of the
following EXCEPT.
Answer: use of genetically modified foods
◍ Actinobacteria Phylum.
Answer: Known for waxy, acid-fast cell walls.
◍ Carbonyl Groups.
Answer: Functional groups found in lipids.
◍ Neutrons.
Answer: Subatomic particles that contribute to atomic mass.
◍ Penicillin was discovered by accident by.
Answer: Alexander Fleming
◍ Peptide Bond.
Answer: Covalent bond linking amino acids together.
◍ Van der Waals Forces.
Answer: Weak interactions similar to hydrogen bonds.
◍ Hydrophobic.
Answer: Substances that repel water.
◍ Antibiotic Sensitivity.
Answer: Microorganism's response to antibiotic treatment.
◍ Broth.
Answer: Liquid nutrient medium for microbial growth.
◍ A student has obtained a sample of pond water for study. Using the
high-power lens, he observes several cells with nuclei. He can conclude that
the cells are NOT bacteria..
Answer: TRUE
ACTUAL EXAM PAPER 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ Selective media.
Answer: Media that inhibits unwanted organisms.
◍ Diagnostic Tracers.
Answer: Used to trace positions of key atoms.
◍ Immersion Oil.
Answer: Used to enhance resolution under a microscope.
◍ Solution Concentration.
Answer: Amount of solute in a solvent.
◍ Swan-necked tubes.
Answer: Apparatus used by Pasteur to demonstrate microbial growth.
◍ Louis Pasteur.
Answer: Known for germ theory and vaccination development.
◍ Viruses.
Answer: Microorganisms with hereditary material in protein covering.
◍ Basic Dyes.
Answer: Simple dyes used for staining bacteria.
◍ Proteins.
Answer: Polymers of amino acids performing various functions.
◍ Industrial Microbiology.
Answer: Application of microorganisms in industrial processes.
◍ Proton Number.
, Answer: Determines the identity of an element.
◍ The formal system for classifying and naming organisms was developed by.
Answer: Carolus Linnaeus
◍ Streak plate method.
Answer: Technique for isolating bacteria on agar surfaces.
◍ Bioextraction.
Answer: Extraction of metals from ores using living organisms.
◍ Atrichous.
Answer: Lacking flagella entirely.
◍ Eukaryotes.
Answer: Organisms with a defined nucleus in cells.
◍ Loop dilution.
Answer: Technique for serially diluting samples in microbiology.
◍ Chikungunya virus.
Answer: Virus primarily affecting Florida and Southeastern coast.
◍ Species.
Answer: Group sharing similar characteristics and genetics.
◍ Microbes are associated with life-sustaining benefits as well as
life-threatening diseases..
Answer: TRUE
◍ Emerging diseases causes.
Answer: Human encroachment and mobility increase disease emergence.
◍ Fastidious.
Answer: Bacteria requiring special growth factors.
◍ Domains.
Answer: Three: Bacteria, Archaea, Eukarya.
◍ Electrons.
, Answer: Subatomic particles involved in chemical bonding.
◍ Capsule.
Answer: Protective layer preventing phagocytosis.
◍ Pyrimidines.
Answer: Another type of nitrogenous base in nucleic acids.
◍ Gram-positive Bacteria.
Answer: Bacteria with thick peptidoglycan layer.
◍ Proteobacteria Phylum.
Answer: Diverse group including many pathogenic bacteria.
◍ Amino acid.
Answer: Building blocks of proteins, contain amino and carboxyl groups.
◍ Differential Media.
Answer: Media distinguishing between different bacteria.
◍ Microorganisms.
Answer: Organisms too small to be seen unaided.
◍ Epidemiology.
Answer: Study of disease distribution and determinants.
◍ Domain Archaea.
Answer: Group of single-celled organisms without a nucleus.
◍ Capsule.
Answer: Gel-like layer surrounding some bacteria.
◍ Triglycerides.
Answer: Fats composed of glycerol and three fatty acids.
◍ Complex media.
Answer: Media with undefined chemical composition.
◍ Gas inclusions.
Answer: Structures for buoyancy in aquatic bacteria.
, ◍ Carbon Isotope.
Answer: Carbon atom with 6 protons and 8 neutrons.
◍ Development of emerging infectious disease can be a result of all of the
following EXCEPT.
Answer: use of genetically modified foods
◍ Actinobacteria Phylum.
Answer: Known for waxy, acid-fast cell walls.
◍ Carbonyl Groups.
Answer: Functional groups found in lipids.
◍ Neutrons.
Answer: Subatomic particles that contribute to atomic mass.
◍ Penicillin was discovered by accident by.
Answer: Alexander Fleming
◍ Peptide Bond.
Answer: Covalent bond linking amino acids together.
◍ Van der Waals Forces.
Answer: Weak interactions similar to hydrogen bonds.
◍ Hydrophobic.
Answer: Substances that repel water.
◍ Antibiotic Sensitivity.
Answer: Microorganism's response to antibiotic treatment.
◍ Broth.
Answer: Liquid nutrient medium for microbial growth.
◍ A student has obtained a sample of pond water for study. Using the
high-power lens, he observes several cells with nuclei. He can conclude that
the cells are NOT bacteria..
Answer: TRUE
