The Three-Domain System · . Gram positive cell wall Membrane protein. Gram negative cell wall 25. SIMPLE STAINING:- METHYLENE BLUE staining. IMPART SAME COLOUR TO ALL BACTERIA. USED
Post on 31-Mar-2020
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fimbriaglycocalyx
pilus
flagellum
Cell wall
Cell membrane
ribosome
Outer membrane
Actin cytoskeleton
Bacterial chromosome or nucleoid
Inclusion/ granule
Bacterial cell
SIMPLE STAINING:-
METHYLENE BLUE staining IMPART SAME COLOUR TO ALL BACTERIA
USED TO KNOW THE ARRANGEMENT
GRAM STAINING
GRAM POSITIVE BACTERIA - VIOLET STAPHYLOCOCCUS STREPTOCOCCUS
GRAM NEGATIVE BACTERIA - PINK E.COLI KLEBSIELLA
ACID FAST STAINING ZEIHL-NEELSON METHOD
PINK COLOR BACILLI
TUBERCLE BACILLI
LEPRA BACILLI BACTERIAL SPORES, CRYPTOSPORIDIUM
Endospore formation
Vegetative cell
Vegetative cell becomessporangium in preparation forSporulation
Sporangium
Sporangium withprospore
BACTERIAL GROWTH CURVE
Lag phase - with no increase in number ( adaptation of new surrounding)
Log phase - phase of division
Stationary phase - division stops due to depletion of nutrients.Phase of decline - due to cell death.
A = lag phase,B = acceleration phase,C = log (exponential) phase
D = stationary phase, E = death phase.
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