**Antibiotics: Are chemicals produced by microorganismsAntibiotics: Are chemicals produced by microorganisms
that inhibit the growth of other microorganisms.that inhibit the growth of other microorganisms.
**Chemotherapeutic agent: (Synthetic versions**Chemotherapeutic agent: (Synthetic versions(.(.
ANTIBIOTIC TYPESANTIBIOTIC TYPES::
11--BOARD SPECTRUM ANTIBIOTICSBOARD SPECTRUM ANTIBIOTICS:-:-
This against wide range of both G+ve and G-This against wide range of both G+ve and G-
ve bacteriave bacteria..
22--Narrow spectrum antibiotics : This againstNarrow spectrum antibiotics : This against
selective groups of organismsselective groups of organisms
MODE OF ACTIONS OFMODE OF ACTIONS OF
11--Distruptions of cell wall synthesisDistruptions of cell wall synthesis..
22--Distruptions of cell membrane functionDistruptions of cell membrane function
33--Inhibition of protein synthesisInhibition of protein synthesis
44--Inhibition of nucleic acid synthesisInhibition of nucleic acid synthesis
55--Competitive Inhibition of metabolic pathwaysCompetitive Inhibition of metabolic pathways..
****Drug resistanceDrug resistance????
Procedure for antibiotic sensitivity testProcedure for antibiotic sensitivity test::
11--Diffusion method (Kirby Baur disk diffusionDiffusion method (Kirby Baur disk diffusion((
22--Pour plate MethodPour plate Method..
The Kirby procedure used to determine the effect of theThe Kirby procedure used to determine the effect of the
drug on the bacterial growthdrug on the bacterial growth..
R: RESISTANCER: RESISTANCE