Bacteria Genus Overview

Question 1

Staphylococcus

Answer 1

• Gram +
• Cocci/ grape clusters
• Catalase +
• Aerobic and Anaerobic
• 18-40C High salt
• Skin and mucosa membranes
• Non-motile
• Non-spore forming

Question 2

Streptococcus

Answer 2

• G +
• Cocci, pairs or chains
• Facultative Anaerobe
• Catalase -
• Ferment glucose —> lactic acid
• Complex growth requirements
• Lance Field Group A

Question 3

Streptococcus Classification

Answer 3

• β-hemolytic Streptococci are put into Lancefield groupings
• α and γ hemolytic Streptococci are classified by biochemical properties and collectively called the viridans group

Question 4

Bacillus

Answer 4

• G+
• Rod
• Aerobic & Facultative anaerobic
• Non-motile
• Form endospores