2. General and Internal Bacterial Structure Flashcards
most bacteria rang in size from _______
1 - 5 um
____ and ____ are the smallest bacteria (0.1 - 0.2 um)
Chlamydia; Rickettsia
____ and ____ are the largest bacteria (0.66 mm)
Epulopiscium fishelsoni; Thiomargarita namibiensis
_____ are spherical shape bacteria
coccus
Examples of coccus shape bacteria are _____ and _____
Strepococcus pyogenes and Staphylococcus aureus
S. pyogenes causes _____ and severe invasive infections commonly referred to as the flesh-eating disease
strep throat
S. aureus causes _______ such as boils, pimples, etc. It also causes toxic shock syndrome
skin infections
____ forms chains
strep
_____ forms grape-like clusters
staph
Bacillus are ____ shaped
rod
An example of Bacillus or rod-shaped bacteria is ______
Bacillus anthracis
Bacillus anthracis causes ______
anthrax
The two kinds of spiral-shaped bacteria include ______ and ____
spirillum, spirochete
____ spiral shaped bacteria have a rigid body
spirillum
____ have a flexible body
spirochetes
Helicobter pylori is a ______ shaped bacteria
spiral
_____ are curved shape and look like a comma
vibrio shaped bacteria
______ is an example of a vibro shaped bacteria
Vibrio cholerae
Vibrio cholerae causes _____, a severe diarrheal disease
cholera
Rods that are so short they appear to be cocci are ____
coccobacillus
Bordetella pertussis is an example of ______ shaped bacteria
coccobacillus
Bordetella pertussis causes _____
whooping cough
The uncommon bacteria shapes are ____, ____, and _____
Star-shaped, rectangular flat, triangular
All bacteria are _____
Prokaryotes
Fungi are _____
Eukaryotes
Protozoa are _____
Eukaryotes
Animals and plants are _____
Eukaryotes
The major difference between prokaryotes and eukaryotes is the fact that prokaryotes do not have a ______ or _____
membrane-bound nucleus, membrane-bound organelles
In a bacteria, the area of the cytoplasm where the chromosome is located is the ____
Nucleoid
The bacterial chromosome is a _____ circular piece of DNA that carries genetic information.
single
Eukaryotes typically have _____ chromosomes
linear
_____ have many chromosomes instead of one
Eukaryotes
The cytoplasm is the same in both ____ and ____ cells
eukaryotic, prokaryotic
In bacterial cells, _____ free float in the cytoplasm and are composed of 2 subunits made of rRNA and protein.
Ribosomes
Subunits and rRNA pieces are smaller in ____ cells than they are in eukaryotes
bacterial
Protein synthesis takes place in the
Ribosome
Plasmids are small, circular pieces of ___ floating in cytoplasm. These are much smaller than the chromosome
DNA
PLASMIDS ARE PRESENT IN SOME BACTERIA BUT NOT ALL
Many ____ carry genes for antibiotic resistance, toxin production, or other functions
Plasmids
PLASMIDS ARE PRESENT IN SOME BACTERIA BUT NOT ALL
____ are areas containing high concentrations of certain compounds which the bacteria need to store
Inclusions
INCLUSIONS ARE PRESENT IN SOME BACTERIA BUT NOT ALL
Inclusions are named based on what they ____
store
Thylakoids are a type of inclusion that store ____
chlorophyll
____ are folded-in portions of the cell membrane which form compartments to hold chlorophyll
thylakoids
____ develop inside cells of certain species of bacteria when put in poor growth conditions such as dry environments, reduced nutrients, too low or too high temperature, presence of certain levels of radiation, etc.
endospores
____ can last many years and will germinate and produce vegetative cells when put in a proper environment
spores
all species of _____ form spores
Bacillus
all species in the genus Clostridium form _____
spores
Clostridium tetani produce spores and causes ____
tetanus
Clostridium botulinum produces spores and causes ____
botulism
Clostridium perfringens produces spores and causes ____
gas gangrene
A phospholipid bilayer with proteins is a _____
cell membrane
The ______ contains all the components needed for electron transport since bacteria have no ____
cell membrane, mitochondria
Eukaryotic cell membranes are different in that they contain ____ as strengthening agents.
sterols
Among bacteria, only ____ have sterols in their cell membrane. All other bacterial cell membranes do not use sterols.
mycoplasmas
Some bacteria use _____ as strengthening agents
hopanoids
What shape of bacteria is this
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Coccus
What shape of bacteria is this
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Coccus
What shape of bacteria is this
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Bacillus
What shape of bacteria is this
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Bacillus
What shape of bacteria is this
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Vibrio
What shape of bacteria is this
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Vibrio
What shape of bacteria is this
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Coccoobacillus
What shape of bacteria is this
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Coccobacillus