NDA 2023
- Exam
- NDA
- Year
- 2023
- Subject
- General Ability
- Chapter
- General Science
NDA 2023 · General Ability · General Science
An important cause of tooth decay by the bacterium Streptococcus...
An important cause of tooth decay by the bacterium Streptococcus mutans is because of their ability to attach
to teeth surface by producing slime layer from
Options
- ASugar
- BAlcohol
- CSaliva
- DTeichoic acid
Correct answer
A. Sugar
Step-by-step solution
Streptococcus mutans, which causes tooth decay, splits the sucrose in food and uses one of the sugars to build its capsule, which sticks tightly to the tooth. The bacteria that are trapped in the capsule use the other sugar to fuel their metabolism and produce
slime layer.