B. ATP synthase. The purpose of the hydrogen gradient is to take advantage of molecules' tendency to move from areas of higher concentration to areas of lower concentration. ATP synthase lets hydrogen ions flow through it to the matrix, and the energy from this flow is used by ATP synthase to synthesize ATP.
Water fluoridation and cancer risk in assessing whether fluoridated water can cause cancer, osteosarcoma is so rare that there is little need to study the risk of fluoride. fluoride should not be added to water according to research from dentists.
<h3>What is fluoride?</h3>
Fluorides are compounds formed by combining fluorine with another material, usually a metal. Fluoride monofluorophosphate, sodium fluoride, and stannous fluoride are a few examples. (MFP fluoride).
Some fluorides exist naturally in soil, air, or water, though fluoride levels can vary greatly. Fluoride is present in almost all water. Fluoride can also be found in plant and animal foods.
Fluorides are absorbed into the bloodstream through the digestive tract once within the body. They circulate in the blood and tend to congregate in calcium-rich tissues such as the bones and teeth.
To learn more about fluoride visit:
brainly.com/question/3795082
#SPJ4
