Which of the following are true concerning fluoride and bacterial inhibition?
1)The fluoride ion freely crosses the bacterial cell wall.
2)Some of the fluoride present in plaque fluid combines with the hydrogen ion of the acid to become hydrofluoric acid.
3)Hydrofluoric acid diffuses into the cell.
4)Once in the acid cytoplasm of the cell,the hydrofluoric acid separates into the fluoride ion and the hydrogen ion.

Question

Quizplus · Accepted Answer

Some of the fluoride present in plaque fluid combines with the hydrogen ion of the acid to become hydrofluoric acid,and hydrofluoric acid diffuses into the cell.The fluoride ion,however,has been shown not to cross the bacterial cell wall,and once in the alkaline rather than acid cytoplasm of the cell,the hydrofluoric acid separates into the fluoride ion and the hydrogen ion again.These ions disrupt the enzyme activities essential to the functioning of bacteria and cause their death.

Which of the Following Are True Concerning Fluoride and Bacterial