Prokaryotic cell structure, growth
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Prokaryotic cell structure, growth
What type of cell lacks a nucleus?
What type of cell has a nucleus?
The type of cell that has circular chromosome, not a membrane?
There are no histones in this cell
There are no organelles in this cell
A peptidoglycan cell wall is found in this cell if its bacteria
Pseudomurein cell walls if found in an archea what cell
this cell has a bisnary fission and has ribosomes
This cell has paired chromosomes in the nuclear membrane
This cell has histones
This cell has organelles
This cell has a polysaccharide cell wall
This cell has a mitotic spindle
This surrounds the cell and helps adhere to surfaces and each other, it also contributes to biofilms
name the two different types of coats for glycocalyx
capsule and slime layer
how is the capsule layer beneficial to the cell?
protects the cell from phagocytosis
describe the slime layer
unorganizzed and loose, more in enviromental areas such as bath tub
Do bacterium have flagella?
yes to be moble
What is flagella made out of
chains of flagelin-protein
What do flagella hook to?
a protein hook anchored to the wall and membrane by the basal body
what are motile cells capible of doing?
moving toward or away from stimuli (taxis) rotating flagella to run or tumble
flagella proteins are called what?
Where are axial filaments found?
only in spirochetes
Axial filaments are also called?
Where is axial filaments located?
between an exterior sheath and the cell wall
How do axial filaments cause the cell to move?
by rotation like a corkscrew, can also have flagella to help get to something and then make its way in by corkscrewing in
What are fimbriae for?
singular for pilli
is fimbriae needed to attack to cause an infection?
This facilitate transfer of dna from one cell to another
what also maybe involved with gliding and twitching motility in a cell?
his prevents osmotic lysis
the cell wall
what is the cell wall made out of?
if a stain wall were to dye blue what kind of cell wall is it?
If a cell wall were to dye red what kind of cell wall is it?
do humans have peptoglycan cell walls
no only bacteria
peptidoglycan in gram-postive bacteria are linked by what?
is the gram positive bacterial cell wall thick or thin?
how does PCN attack a gram postive wall
by preventing cross bridge links so links would not be able to form
an antigen found in gram + that helps identify them?
what kind of cell wall has a very thin peplidoglycan cell layer?
what cell membrane has the double layer laying on top of the peptoglycan layer?
what cell membrane has many lipids involved
what cell wall has O polysaccaride as an antigen
gram neg that stick out on the outside
There are cell walls that cannot stain what are they?
Atypical cell walls only found in a few bacteria and have to do a special acid/base stain example TB
these cells lack a cell wall and have sterols in the plasma membrane
This cell has no cell membrane or walls of pseudomurein
What is the main feature that distinguishes prokaryotes from eukaryotes?
How would you be able to identify streptococci through a microscope?
spiralic shape and chains
Bacillus is what shaped?
What shape is coocus?
what shape takes on spirillum, vibrio and spirochete?
pairs of cicles
cluster of circles
streptococci is, or streptobacilli
chains of circles, or chains of rods
the prefix staph will only go with?
What layer is more pathogenic to a cell, capsule of slime?
capsule because it protects them from phagocytosis
What does trichous?
what is lophotrichous?
a cell with a tuft of flagella on it
What is amphitrichous?
a bacteria with 2 flagella one on each end.
Fimbrae allow for attatchment but what else do they contribute?
What are fimbriae and pili made out of?
What is a cell wall for?
helps hold cell together, and gives shape, also prevents osmotic lysis
What is the antigen for gram neg?
What is lipid A for on the gram stain neg?
it anchors the lipopolysaccharide down.
What happens when lipid A an endotoxin when the cell wall is damaged?
it releases toxins into the body
What is the part that sticks out of the gram neg bacteria on the lipolysaccharide?
O polysacharide, also antignic
What is it called when a cell wall is damaged and it causes the bacteria to form spherical shapes?
proplasts or speroplasts
Bacteria who lose there cell wall, can they also form a L shape?
Bacteria who lose a cell wall can they gain it back?
yes they can, it is possible for them to survive and rebuild when conditions go back to normal. AKA stop taking antibiotics.