Question

Which of the following causes of pneumonia matches this description: small, gram positive lancet shaped cells arranged in pairs and short chains?

a) Streptococcus pneumoniae
b) Mycoplasma pneumoniae
c) Legionella pneumophila
d) Haemophilus influenzae

Answer 1

Streptococcus pneumoniae matches the description of small, gram-positive lancet-shaped cells arranged in pairs and short chains. It causes pneumonia and other respiratory infections.

Step-by-step explanation:

The small, gram-positive lancet-shaped cells arranged in pairs and short chains match the description of Streptococcus pneumoniae (S. pneumoniae). S. pneumoniae is a bacterium that causes pneumonia and other respiratory infections. It can also cause other diseases such as meningitis, septicemia, osteomyelitis, and endocarditis, especially in vulnerable populations.