Openstax Microbiology chapter 1 EXAM
QUESTIONS WITH CORRECT ANSWERS 100%
VERIFIED.
About how large must an object be to see it with the naked eye? - CORRECT ANSWER✅✅✅About
100 micrometers
Algae - CORRECT ANSWER✅✅✅Plantlike protists
Are helminths microorganisms? - CORRECT ANSWER✅✅✅Yes they are, which is strange because
one can see them with the eye; however, they have eggs that are often microscopic and that is how they
typically spread
Atom size - CORRECT ANSWER✅✅✅0.1 nm
Bacteria - CORRECT ANSWER✅✅✅single-celled organisms that lack a nucleus; prokaryotes
bacterial cell size - CORRECT ANSWER✅✅✅1 micrometer
bacterial shapes - CORRECT ANSWER✅✅✅spherical (coccus), rod-shaped (bacillus), or curved
(spirillum, spirochete, or vibrio).
Bacteriology - CORRECT ANSWER✅✅✅study of bacteria
binomial nomenclature - CORRECT ANSWER✅✅✅Classification system in which each species is
assigned a two-part scientific name
Defining characteristics of bacteria - CORRECT ANSWER✅✅✅1) lack of membrane-bound
organelles, 2) unicellular and 3) small (usually microscopic) size
, Do archaebacteria have peptidoglycan in their walls? - CORRECT ANSWER✅✅✅No way Jose
Do most bacteria contain peptidoglycan in their walls? - CORRECT ANSWER✅✅✅Yep
Does modern taxonomy rely more or less heavily on comparing DNA and nucleotide sequences now
than it used to? - CORRECT ANSWER✅✅✅more
genus - CORRECT ANSWER✅✅✅group of closely related species; the first part of the scientific name
in binomial nomenclature
Give me the term for the classification, description, identification, and naming of living organisms! And
who came up with it first!? - CORRECT ANSWER✅✅✅taxonomy, Carolus Linnaeus (1701-1778)
Give two examples of foods that have historically been made with microbes? - CORRECT
ANSWER✅✅✅Wine (with fermentation) and bread
How are stains and dyes used in microbio? - CORRECT ANSWER✅✅✅They help add color to things
so things can be better seen
How bid is a typical animal cell and a typical bacterial cell? - CORRECT ANSWER✅✅✅animal cells are
about ten micrometers and bacteria are around 1 micrometer in diameter, and viruses are ten times
smaller than bacteria
How did the Romans prevent illnesses from human waste? - CORRECT ANSWER✅✅✅They made
massive aqueducts that brought in fresh water and made a huge sewer called Cloaca Maxima to dump a
whole lot of nasty into the river Tiber
How is a guinea worm typically spread and contracted by a human? - CORRECT ANSWER✅✅✅water
infected with water fleas that have the parasite in them
QUESTIONS WITH CORRECT ANSWERS 100%
VERIFIED.
About how large must an object be to see it with the naked eye? - CORRECT ANSWER✅✅✅About
100 micrometers
Algae - CORRECT ANSWER✅✅✅Plantlike protists
Are helminths microorganisms? - CORRECT ANSWER✅✅✅Yes they are, which is strange because
one can see them with the eye; however, they have eggs that are often microscopic and that is how they
typically spread
Atom size - CORRECT ANSWER✅✅✅0.1 nm
Bacteria - CORRECT ANSWER✅✅✅single-celled organisms that lack a nucleus; prokaryotes
bacterial cell size - CORRECT ANSWER✅✅✅1 micrometer
bacterial shapes - CORRECT ANSWER✅✅✅spherical (coccus), rod-shaped (bacillus), or curved
(spirillum, spirochete, or vibrio).
Bacteriology - CORRECT ANSWER✅✅✅study of bacteria
binomial nomenclature - CORRECT ANSWER✅✅✅Classification system in which each species is
assigned a two-part scientific name
Defining characteristics of bacteria - CORRECT ANSWER✅✅✅1) lack of membrane-bound
organelles, 2) unicellular and 3) small (usually microscopic) size
, Do archaebacteria have peptidoglycan in their walls? - CORRECT ANSWER✅✅✅No way Jose
Do most bacteria contain peptidoglycan in their walls? - CORRECT ANSWER✅✅✅Yep
Does modern taxonomy rely more or less heavily on comparing DNA and nucleotide sequences now
than it used to? - CORRECT ANSWER✅✅✅more
genus - CORRECT ANSWER✅✅✅group of closely related species; the first part of the scientific name
in binomial nomenclature
Give me the term for the classification, description, identification, and naming of living organisms! And
who came up with it first!? - CORRECT ANSWER✅✅✅taxonomy, Carolus Linnaeus (1701-1778)
Give two examples of foods that have historically been made with microbes? - CORRECT
ANSWER✅✅✅Wine (with fermentation) and bread
How are stains and dyes used in microbio? - CORRECT ANSWER✅✅✅They help add color to things
so things can be better seen
How bid is a typical animal cell and a typical bacterial cell? - CORRECT ANSWER✅✅✅animal cells are
about ten micrometers and bacteria are around 1 micrometer in diameter, and viruses are ten times
smaller than bacteria
How did the Romans prevent illnesses from human waste? - CORRECT ANSWER✅✅✅They made
massive aqueducts that brought in fresh water and made a huge sewer called Cloaca Maxima to dump a
whole lot of nasty into the river Tiber
How is a guinea worm typically spread and contracted by a human? - CORRECT ANSWER✅✅✅water
infected with water fleas that have the parasite in them
