Streptococcus mutans is a common oral bacterium that forms dental plaque,which,if not removed,often results in tooth decay.What component of S.mutans is responsible for the formation of dental plaque?
A)digestive enzymes released by the organism
B)waste products excreted by the organism
C)extracellular matrix materials of the organism
D)proteins found in the cell wall of the organism

Question

Quizplus · Accepted Answer

The extracellular matrix materials of S. mutans, specifically a sticky polysaccharide called glucan, are responsible for the formation of dental plaque. The bacteria produce and secrete these sugars, which then bind to each other and to the tooth surface, forming a sticky biofilm that can protect the bacteria from being washed away by saliva or brushing. The plaque buildup can lead to tooth decay if not removed.

Streptococcus Mutans Is a Common Oral Bacterium That Forms Dental