Which of the Following Are True Concerning Fluoride and Bacterial

question 32

Multiple Choice

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.

• A) 1,2,3,4
• B) 1,2,3
• C) 2,3
• D) 1,4

---

Definitions:

Recession

A period of GDP contraction that lasts for at least two consecutive quarters within 1 year.

Economic Exposure

A company’s exposure to unexpected change in foreign exchange rates.

Forward Exchange Rate

A financial term describing an agreed exchange rate for the future exchange of two currencies, used primarily for hedging against foreign exchange risk.

Government Policy

The strategic plans and decisions made by government leaders and agencies that determine the direction of national, state, or local governance.