Diplococci are bacteria that occur in which arrangement and are commonly associated with which disease?

Diplococci are bacteria that occur in which arrangement and are commonly associated with which disease?

• A. Pairs; cause pneumonia
• B. Clusters; cause strep throat
• C. Chains; cause tuberculosis
• D. Single cells; cause the common cold

Answer: (A)

Diplococci are bacteria that divide and remain in pairs. This paired arrangement is a hallmark of organisms like Streptococcus pneumoniae, which is a classic cause of pneumonia. That makes pneumonia the best association for diplococci. Other patterns point to different organisms or causes, not to diplococci with pneumonia. Clusters are typically linked to Staphylococcus species, chains to many Streptococcus species responsible for throat infections, and the common cold is caused by viruses, not bacteria.

Diplococci are bacteria that divide and remain in pairs. This paired arrangement is a hallmark of organisms like Streptococcus pneumoniae, which is a classic cause of pneumonia. That makes pneumonia the best association for diplococci.

Other patterns point to different organisms or causes, not to diplococci with pneumonia. Clusters are typically linked to Staphylococcus species, chains to many Streptococcus species responsible for throat infections, and the common cold is caused by viruses, not bacteria.