Question

When streptococcus pneumoniae bacteria are grown on a culture plate

Answer 1

Answer:

Streptococcus pneumoniae is an anaerobic, gram-positive bacterium that is cultured at 35-37°C with 5% CO2. ... The bacterium is alpha-hemolytic and when grown on blood agar colonies appear small, grey and produce a green zone of hemolysis.

Answer 2

Answer:

Explanation:

Streptococcus pneumoniae is a fastidious bacterium, growing best in 5% carbon dioxide. Nearly 20% of fresh clinical isolates require fully anaerobic conditions. In all cases, growth requires a source of catalase (e.g. blood) to neutralize the large amount of hydrogen peroxide produced by the bacteria.