MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
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classification of viruses into families involves determining all of the following characteristics
except:
presence of an envelope
biochemical reactions
type of nucleic acid
type of capsid
number of strands in the nucleic acid - CORRECT ANSWERS biochemical reactions
the endosymbiotic theory says that precursor eukaryotic cells acquired flagella by
endosymbiosis with a _____ ancestor and others gained photosynthetic ability from
endosymbiosis with an ____ ancestor - CORRECT ANSWERS spirochete
cyanobacteria
a naked virus only has a - CORRECT ANSWERS nucleocapsid
the core of every virus particle always contains - CORRECT ANSWERS either DNA or
RNA
chitin is a chemical component of the cell wall of - CORRECT ANSWERS fungi
you have found a mutant strep pneumonia that has lost the ability to produce a capsule. if you
inject the strain into a population of healthy mice, what prediction can you make - CORRECT
ANSWERS the mice will remain healthy
,MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
T or F: fungi can reproduce both sexually and asexually - CORRECT ANSWERS true
in humans, helminths usually infect the - CORRECT ANSWERS digestive tract
which of the following is a type of cytopathic effect:
inclusions in the nucleus
multinucleated giant cells
inclusions in the cytoplasm
rounded cells
all of the above - CORRECT ANSWERS all of the above
chemotaxis refers to the ability to - CORRECT ANSWERS move in response to a
chemical
the motile feeding stage of protozoa is called the - CORRECT ANSWERS trophozoite
viruses exhibit all of the following except:
definite shape
genes
metabolism
ability to infect host cells - CORRECT ANSWERS metabolism
,MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
the difference in cell wall structure of mycobacterium and nocardia compared to the typically
gram positive bacterial cell wall structure is - CORRECT ANSWERS predominance of
unique waxy lipids
viruses with ____ senses RNA contain the correct message for translation, while viruses with
____ sense RNA must be first converted into a correct message - CORRECT ANSWERS
positive
negative
the correct procedure for gram staining - CORRECT ANSWERS crystal violet, iodine,
alcohol/acetone, safranin
which of the following is not a characteristic of a prokaryotic
its DNA is not encased in a membrane
its DNA is wrapped around histones
it has a cell wall made of peptidoglycans or other distinct chemicals
it does not have membrane bound organelles
it is unicellular - CORRECT ANSWERS its DNA is wrapped around histones
two noncellular agents smaller than viruses, are the infectious proteins called _____ and the
infectious RNA strands called - CORRECT ANSWERS prions
viroids
T or F: infections caused by fungi are called mycoses - CORRECT ANSWERS true
, MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
T or F: viruses are the most common cause of acute infectious that do not require
hospitalization - CORRECT ANSWERS true
causes ohio valley fever - CORRECT ANSWERS histoplasma
causes african sleeping sickness - CORRECT ANSWERS trypanosomes
transmitted by feces in drinking water - CORRECT ANSWERS giardia
viral tissue specificities are called - CORRECT ANSWERS tropisms
the woven intertwining mass of a hyphae that makes up the body of a mold is - CORRECT
ANSWERS mycelium
mammalian viruses capable of starting tumors are called - CORRECT ANSWERS
oncoviruses
the function of bacterial endospores is - CORRECT ANSWERS protection of genetic
material during harsh conditions
syphillus is caused by a spirochete called - CORRECT ANSWERS treponema pallidum
the one celled organism seen in your microscope moves very slowly by protruding its
cytoplasm. the specimen was taken from a patient having diarrhea. you would suspect the
patient has an infection by what pathogen - CORRECT ANSWERS entamoeba
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
classification of viruses into families involves determining all of the following characteristics
except:
presence of an envelope
biochemical reactions
type of nucleic acid
type of capsid
number of strands in the nucleic acid - CORRECT ANSWERS biochemical reactions
the endosymbiotic theory says that precursor eukaryotic cells acquired flagella by
endosymbiosis with a _____ ancestor and others gained photosynthetic ability from
endosymbiosis with an ____ ancestor - CORRECT ANSWERS spirochete
cyanobacteria
a naked virus only has a - CORRECT ANSWERS nucleocapsid
the core of every virus particle always contains - CORRECT ANSWERS either DNA or
RNA
chitin is a chemical component of the cell wall of - CORRECT ANSWERS fungi
you have found a mutant strep pneumonia that has lost the ability to produce a capsule. if you
inject the strain into a population of healthy mice, what prediction can you make - CORRECT
ANSWERS the mice will remain healthy
,MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
T or F: fungi can reproduce both sexually and asexually - CORRECT ANSWERS true
in humans, helminths usually infect the - CORRECT ANSWERS digestive tract
which of the following is a type of cytopathic effect:
inclusions in the nucleus
multinucleated giant cells
inclusions in the cytoplasm
rounded cells
all of the above - CORRECT ANSWERS all of the above
chemotaxis refers to the ability to - CORRECT ANSWERS move in response to a
chemical
the motile feeding stage of protozoa is called the - CORRECT ANSWERS trophozoite
viruses exhibit all of the following except:
definite shape
genes
metabolism
ability to infect host cells - CORRECT ANSWERS metabolism
,MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
the difference in cell wall structure of mycobacterium and nocardia compared to the typically
gram positive bacterial cell wall structure is - CORRECT ANSWERS predominance of
unique waxy lipids
viruses with ____ senses RNA contain the correct message for translation, while viruses with
____ sense RNA must be first converted into a correct message - CORRECT ANSWERS
positive
negative
the correct procedure for gram staining - CORRECT ANSWERS crystal violet, iodine,
alcohol/acetone, safranin
which of the following is not a characteristic of a prokaryotic
its DNA is not encased in a membrane
its DNA is wrapped around histones
it has a cell wall made of peptidoglycans or other distinct chemicals
it does not have membrane bound organelles
it is unicellular - CORRECT ANSWERS its DNA is wrapped around histones
two noncellular agents smaller than viruses, are the infectious proteins called _____ and the
infectious RNA strands called - CORRECT ANSWERS prions
viroids
T or F: infections caused by fungi are called mycoses - CORRECT ANSWERS true
, MICROBIOLOGY 275 MIDTERM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE EXAM
SOLUTION ALL ANSWERS GET IT 100% CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR PASS
T or F: viruses are the most common cause of acute infectious that do not require
hospitalization - CORRECT ANSWERS true
causes ohio valley fever - CORRECT ANSWERS histoplasma
causes african sleeping sickness - CORRECT ANSWERS trypanosomes
transmitted by feces in drinking water - CORRECT ANSWERS giardia
viral tissue specificities are called - CORRECT ANSWERS tropisms
the woven intertwining mass of a hyphae that makes up the body of a mold is - CORRECT
ANSWERS mycelium
mammalian viruses capable of starting tumors are called - CORRECT ANSWERS
oncoviruses
the function of bacterial endospores is - CORRECT ANSWERS protection of genetic
material during harsh conditions
syphillus is caused by a spirochete called - CORRECT ANSWERS treponema pallidum
the one celled organism seen in your microscope moves very slowly by protruding its
cytoplasm. the specimen was taken from a patient having diarrhea. you would suspect the
patient has an infection by what pathogen - CORRECT ANSWERS entamoeba
