Which type of pus-forming bacteria forms in long chains and can cause infections like strep throat?

The correct response identifies Streptococci as the type of pus-forming bacteria that forms in long chains and is known to cause infections such as strep throat. Streptococci are spherical bacteria that grow in chains, and they are classified under Gram-positive bacteria. This characteristic chain formation distinguishes them from other bacteria.

Streptococci are responsible for various infections including strep throat, skin infections, and can be associated with serious illnesses such as rheumatic fever. Their ability to form chains is significant as it affects how they interact with the immune system and contributes to their pathogenicity.

Understanding the structure and classification of bacteria, particularly the arrangement of Streptococci, is essential in microbiology and clinical settings because these features can indicate the potential for diseases and guide treatment options.