BACTERIOLOGY P1

MycoPLASMA Pneumoniae

no cell wall bacteria

Walking Pneumonia

• Tetracycline 8 ptaas

• Erythromycin

MycoPLASMA Pneumoniae

• AKA

• DOC

Cell wall

Provides protection and resistance to lysis by osmotic shock

• Imparts shape to most bacterial cells

• have associated autolysins, enzymes that dissolve the peptidoglycan layer

peptidoglycan

Cell wall

• Mostly made up of??

  • attached the gram stain

• N acetyl GLUCOsamine

• N acetyl MURAmic Acid

2 types of PEPTIDOGLYCAN

Cytoplasmic membrane

The physical and metabolic barrier between the interior and exterior of the bacterial cell.

• It is where the bacterial electron transport system, the principal energy system, is located.

LIPO PolySACCHAride

it have GRAM NEGATIVE

• CAUSE: inflammation

ACID FAST STAIN

Bacteria RESISTANT to Gram stain we use:

Pri: CARBOL FuchSIN

Sec: Methylene Blue, MALAchite Green

ACID FAST STAIN

• primary

• secondary

Cytoplasm

• Viscous aqueous suspension of protein, nucleic acid, dissolved organic compounds, mineral salts

• Contains the enzymes, storage granules

Genome

(Nuclear area or nucleoid)

• Bacterial chromosomes It is a lipoprotein molecule that contains the genetic code or DNA.

Ribosomes

They are complex globular structures composed of several RNA molecules and many associated proteins.

• They are the centers for protein synthesis.

SVEDberg

What is the S in 70s

SVEDberg

unit of SEDIMENTATION

Flagella

They are long filamentous appendages that arise from one or more locations on the surface of the cell and are used for cellular locomotion

flagellin

Bacterial flagella are composed exclusively of

• which is a protein.

Capsule

It is a gelatinous substance made up of polysaccharide and/or polypeptide.

• It protects the bacteria from phagocytosis.

• It also enables the bacteria to adhere to surfaces.

glycocalyx

Capsule

• if loose/sligmy

fimbriae

Common pili also known as

Pili

Hair-like structure surrounding the cell.

• They are protein fibers that cover the entire surface of bacteria.

• Composed of a single protein that forms a helical filament. Used for adherence to mucosal surfaces.

Sex pili or F pili

They are specifically involved in bacterial conjugation

volutin granules.

Metachromatic granules also known as

Metachromatic granules

They are reserve of inorganic phosphate that can be used in the synthesis of ATP.

Endospores

They are resting structures formed by some bacteria for survival during adverse environmental conditions.

They are made up of calcium dipicolinate.

Functions:

• Survival during conditions of desiccation, nutrient depletion & waste build up

• Resist to heat and chemicals