Bacteriology

........ is a barrier for selective permeability of bacterial cell between outside and inside

• cell membrane

• cell wall

• Neucloid

• ribosomes

....... is classified as ( group A ) B hemolytic streptococci

• S.viridans

• S.agalctia

• S.pyogens

• Enterococci

S. Saprohyticus is classified according to oxygen media into :

• Aerobic

• Anaerobic

• Facultative Anaerobic

Bacterial ribosomes consist of 2 sub-units

• 30s & 60s

• 30s & 50s

• 30s & 90s

• 20s & 50s

Peptococus are classified as

• Gram positive aerobic cocci

• gram negative anaerobic cocci

• Gram positive anaerobic cocci

• Gram positive anaerobic bacilli

H. Influnza classified as

• Gram positive aerobic bacilli

• Gram negative aerobic bacilli

• Gram negative anaerobic cocci

• Gran negative anaerobic bacilli