OPENSTAX MICROBIOLOGY TEST BANK
FINAL TEST 2026 QUESTIONS WITH
CORRECT ANSWERS GRADED A+
◍ SIMILARITIES BETWEEN BACTERIA AND ARCHAEA.
Answer: BOTH ARCHAEA AND BACTERIO LACK A CELLULAR
NUCELUS
◍ PHYLUM.
Answer: a level of classification or taxonomic rank below kingdom and
above class.
◍ Transient microbiota differ from normal microbiota in that transient
microbiotaA) cause diseasesB) are found in a certain location on the hostC)
are always acquired by direct contactD) are present for a relatively short
timeE) never cause disease.
Answer: are present for a relatively short time
◍ INTERACTION BETWEEN 2 PROKARYOTIC POPULATIONS IN
WHICH ONE POP BENEFITS AND THE OTHER IS NOT AFFECTED.
Answer: COMMENSALISM
◍ THE TYPE OF INCLUSION CONTAINING POLYMERIZED
INORGANIC PHOSPHATE IS CALLED....
Answer: volutin (or metachromatic granule)
◍ ZIEHL NEELSEN STAINING A TYPE OF ___ STAINING, IS
DIAGNOSTIC FOR MYCOBACTERIUM TUBERCULOSIS.
Answer: ACID-FAST
◍ DESCRIBE THE DIFFERENCES BETWEEN BACTERIA AND
ARCHAEA.
, Answer: ARCHAEA DIFFER FROM BACTERIA IN EVOLUTIONARY
HISTORY, GENETICS, METABOLIC PATHWAYS AND CELL WALL
AND MEMBRANE COMPOSITION
◍ CAPSULE IS ESSENTIALLY A SLIME LAYER.
Answer: IT PROTECTS THE BACTERIA FROM CONTAMINATION OR
DESTRUCTION BY BACTERIAL VIRUSES AND DETERGENTS
◍ WHY IS A STUDY OF HELMINTHS INCLUDED IN
MICROBIOLOGY?.
Answer: THEY ARE INCLUDED INT HE FIELD OF MICROBIOLOGY
BECAUSE THEIR EGGS AND LARVAE ARE OFTEN MICROSCOPIC.
◍ WHICH OF THE FOLLOWING IS NOT A SUBFIELD OF
MICROBIOLOGY?BACTERIOLOGYBOTANYCLINICAL
MICROBIOLOGYVIROLOGY.
Answer: BOTANY
◍ t or f: Reservoirs of infections are always animate objects..
Answer: false
◍ WHY MUST THE FUNCTION OF BOTH LYSOSOMES AND
PEROXISOMES BE COMPARTMENTALIZED?.
Answer: to prevent damage to other cells, maintain specific pH levels, and
concentrate necessary enzymes and substratesavoids inappropriate
auto-digestion of other organelles inside the cell."DECOMPOSERS"
LYSOSOME - the digestive system of the cell, serving both to degrade
material taken up from outside the cell and to digest obsolete components of
the cell itself.PEROXISOME- break down fatty acids and amino acids. The
by-product of these reactions is hydrogen peroxide, a substance potentially
toxic to the cell.
◍ WHO WAS THE FIRST TO DESCRIBE CELLS IN DEAD CORK
TISSUE?.
Answer: ROBERT HOOKE
◍ HARD OUTER COVERING OF DINOFLAGELLATES.
, Answer: THECA/ ARMOR
◍ MYCOLIC ACID I.
Answer: IS A WAXY COATING
◍ WHAT ARE THE THREE DOMAINS FOR LIFE?.
Answer: ARCHAEABACTERIAEUKARYYA
◍ Symptoms of disease differ from signs of disease in that symptomsA) are
changes felt by the patientB) are changes observed by the physicianC) are
specific for a particular diseaseD) always occur as part of a syndromeE)
none of the answers is correct.
Answer: are changes felt by the patient
◍ what is thought to account for the unique radiation resistance of D.
radiodurans?.
Answer: unique mechanisms of DNA repair.
◍ WHAT TERM REFERS TO TA BACTERIAL CELLHAS A FLAGELLA
AT BOTH ENDS?.
Answer: AMPHITRICHOUS
◍ PHYLUM.
Answer: DESCRIBES PROTEOBAACTERIA IN DOMAIN BACTERIA
◍ WHAT IS THE FUNCTION OF THE CONDENSER IN A BRIGHTFIELD
MICROSCOPE?.
Answer: FOCUSES ALL THE LIGHT RAYS ON THE SOECIMEN TO
MAXIMIZE ILLUMINATION
◍ Explain Pasteur's swan neck flask experiment.
Answer: He heated an infusion sealed in a vessel with a S-shaped or "Swan
neck", let it cool, and then broke of the tip of the vessel. This allowed fresh
air to enter, but any particulate matter was trapped in the bend of the neck.
The culture did not putrefy, even though it had access to air.
◍ SEROLOGICAL TESTING.
Answer: the scientific study or diagnostic examination of blood serum,
, especially with regard to the response of the immune system to pathogens or
introduced substances.
◍ WHICH TYPE OF MICROSCOPE WOULD BE THE BEST CHOICE
FOR VIEWING VERY SMALL SURFACE STRUCTURES OF A CELL?.
Answer: SCANNIGN ELECTRON MICROSCOPE
◍ WHY DO EUKARYOTIC CELLS REQUIRE AN ENDOMEMBRANE
SYSTEM?.
Answer: .The endomembrane system permits various functions of the
eukaryotic cell to be compartmentalized (e.g., protein degradation occurs in
the lysosome), allowing a higher degree of cell specialization. The system
relies on dynamic interactions between different compartments, facilitated
by vesicle trafficking between them.unlike prokaryotes, eukaryotic cells
posses a system of compartments, the so-called endomembrane system,
which are involved in the synthesis process
◍ WHICH OF THE FOLLOWING WAS NOT A KINGDOM IN
LINNAEUS'S TAXONOMY? ANIMAL MINERAL PROTISTPLANT.
Answer: PROTIST
◍ WHAT EVIDENCE WOULD YOU USE TO SUPPORT THIS
STATEMENT :ANCIENT PEOPLE THOUGHT THAT DISEASE WAS
TRANSMITTED BY THINGS THEY COULD NOT SEE..
Answer: - HISTORICAL ATTEMPTS TO CONTAIN THE SPREAD OF
DISEASE BY QUARANTINING PEOPLE WITH LEPROSY AND
OTHER DISEASED -DEVELOPED HYGINE PRACTICES TO
CONTAIN MIASMATIC ODORS 0 COMPEX SEWAGE SYSTEMS-
THUCYDIDES MADE AN IMPORTANT OBSERVATION THAT
SURVIVORS DID NOT GET RE-INFECTED WITH THE DIESASE
WHILE TAKING CARE OF ACTIVELY SICK PEOPLE. -
UNDERSTANDING THE CONCEPT OF IMMUNITY
◍ WHO WAS THE FIRST TO OBSERVE "ANIMALCULES" UNDER THE
MICROSCOPE? ANTONIE VAN LEEUWENHOEKOTZI THE
ICEMANMARCUS TERENTIUS VARROROBERT KOCH.
FINAL TEST 2026 QUESTIONS WITH
CORRECT ANSWERS GRADED A+
◍ SIMILARITIES BETWEEN BACTERIA AND ARCHAEA.
Answer: BOTH ARCHAEA AND BACTERIO LACK A CELLULAR
NUCELUS
◍ PHYLUM.
Answer: a level of classification or taxonomic rank below kingdom and
above class.
◍ Transient microbiota differ from normal microbiota in that transient
microbiotaA) cause diseasesB) are found in a certain location on the hostC)
are always acquired by direct contactD) are present for a relatively short
timeE) never cause disease.
Answer: are present for a relatively short time
◍ INTERACTION BETWEEN 2 PROKARYOTIC POPULATIONS IN
WHICH ONE POP BENEFITS AND THE OTHER IS NOT AFFECTED.
Answer: COMMENSALISM
◍ THE TYPE OF INCLUSION CONTAINING POLYMERIZED
INORGANIC PHOSPHATE IS CALLED....
Answer: volutin (or metachromatic granule)
◍ ZIEHL NEELSEN STAINING A TYPE OF ___ STAINING, IS
DIAGNOSTIC FOR MYCOBACTERIUM TUBERCULOSIS.
Answer: ACID-FAST
◍ DESCRIBE THE DIFFERENCES BETWEEN BACTERIA AND
ARCHAEA.
, Answer: ARCHAEA DIFFER FROM BACTERIA IN EVOLUTIONARY
HISTORY, GENETICS, METABOLIC PATHWAYS AND CELL WALL
AND MEMBRANE COMPOSITION
◍ CAPSULE IS ESSENTIALLY A SLIME LAYER.
Answer: IT PROTECTS THE BACTERIA FROM CONTAMINATION OR
DESTRUCTION BY BACTERIAL VIRUSES AND DETERGENTS
◍ WHY IS A STUDY OF HELMINTHS INCLUDED IN
MICROBIOLOGY?.
Answer: THEY ARE INCLUDED INT HE FIELD OF MICROBIOLOGY
BECAUSE THEIR EGGS AND LARVAE ARE OFTEN MICROSCOPIC.
◍ WHICH OF THE FOLLOWING IS NOT A SUBFIELD OF
MICROBIOLOGY?BACTERIOLOGYBOTANYCLINICAL
MICROBIOLOGYVIROLOGY.
Answer: BOTANY
◍ t or f: Reservoirs of infections are always animate objects..
Answer: false
◍ WHY MUST THE FUNCTION OF BOTH LYSOSOMES AND
PEROXISOMES BE COMPARTMENTALIZED?.
Answer: to prevent damage to other cells, maintain specific pH levels, and
concentrate necessary enzymes and substratesavoids inappropriate
auto-digestion of other organelles inside the cell."DECOMPOSERS"
LYSOSOME - the digestive system of the cell, serving both to degrade
material taken up from outside the cell and to digest obsolete components of
the cell itself.PEROXISOME- break down fatty acids and amino acids. The
by-product of these reactions is hydrogen peroxide, a substance potentially
toxic to the cell.
◍ WHO WAS THE FIRST TO DESCRIBE CELLS IN DEAD CORK
TISSUE?.
Answer: ROBERT HOOKE
◍ HARD OUTER COVERING OF DINOFLAGELLATES.
, Answer: THECA/ ARMOR
◍ MYCOLIC ACID I.
Answer: IS A WAXY COATING
◍ WHAT ARE THE THREE DOMAINS FOR LIFE?.
Answer: ARCHAEABACTERIAEUKARYYA
◍ Symptoms of disease differ from signs of disease in that symptomsA) are
changes felt by the patientB) are changes observed by the physicianC) are
specific for a particular diseaseD) always occur as part of a syndromeE)
none of the answers is correct.
Answer: are changes felt by the patient
◍ what is thought to account for the unique radiation resistance of D.
radiodurans?.
Answer: unique mechanisms of DNA repair.
◍ WHAT TERM REFERS TO TA BACTERIAL CELLHAS A FLAGELLA
AT BOTH ENDS?.
Answer: AMPHITRICHOUS
◍ PHYLUM.
Answer: DESCRIBES PROTEOBAACTERIA IN DOMAIN BACTERIA
◍ WHAT IS THE FUNCTION OF THE CONDENSER IN A BRIGHTFIELD
MICROSCOPE?.
Answer: FOCUSES ALL THE LIGHT RAYS ON THE SOECIMEN TO
MAXIMIZE ILLUMINATION
◍ Explain Pasteur's swan neck flask experiment.
Answer: He heated an infusion sealed in a vessel with a S-shaped or "Swan
neck", let it cool, and then broke of the tip of the vessel. This allowed fresh
air to enter, but any particulate matter was trapped in the bend of the neck.
The culture did not putrefy, even though it had access to air.
◍ SEROLOGICAL TESTING.
Answer: the scientific study or diagnostic examination of blood serum,
, especially with regard to the response of the immune system to pathogens or
introduced substances.
◍ WHICH TYPE OF MICROSCOPE WOULD BE THE BEST CHOICE
FOR VIEWING VERY SMALL SURFACE STRUCTURES OF A CELL?.
Answer: SCANNIGN ELECTRON MICROSCOPE
◍ WHY DO EUKARYOTIC CELLS REQUIRE AN ENDOMEMBRANE
SYSTEM?.
Answer: .The endomembrane system permits various functions of the
eukaryotic cell to be compartmentalized (e.g., protein degradation occurs in
the lysosome), allowing a higher degree of cell specialization. The system
relies on dynamic interactions between different compartments, facilitated
by vesicle trafficking between them.unlike prokaryotes, eukaryotic cells
posses a system of compartments, the so-called endomembrane system,
which are involved in the synthesis process
◍ WHICH OF THE FOLLOWING WAS NOT A KINGDOM IN
LINNAEUS'S TAXONOMY? ANIMAL MINERAL PROTISTPLANT.
Answer: PROTIST
◍ WHAT EVIDENCE WOULD YOU USE TO SUPPORT THIS
STATEMENT :ANCIENT PEOPLE THOUGHT THAT DISEASE WAS
TRANSMITTED BY THINGS THEY COULD NOT SEE..
Answer: - HISTORICAL ATTEMPTS TO CONTAIN THE SPREAD OF
DISEASE BY QUARANTINING PEOPLE WITH LEPROSY AND
OTHER DISEASED -DEVELOPED HYGINE PRACTICES TO
CONTAIN MIASMATIC ODORS 0 COMPEX SEWAGE SYSTEMS-
THUCYDIDES MADE AN IMPORTANT OBSERVATION THAT
SURVIVORS DID NOT GET RE-INFECTED WITH THE DIESASE
WHILE TAKING CARE OF ACTIVELY SICK PEOPLE. -
UNDERSTANDING THE CONCEPT OF IMMUNITY
◍ WHO WAS THE FIRST TO OBSERVE "ANIMALCULES" UNDER THE
MICROSCOPE? ANTONIE VAN LEEUWENHOEKOTZI THE
ICEMANMARCUS TERENTIUS VARROROBERT KOCH.
