The contains hydrogen pumps that lead to the formation of hydrochloric acid, which is used to dissolve bone minerals in a process called

For the first missing term the answer would be oseteoclasts. These contains hydrogen pumps that is involved in the formation the hydrochloric acid that is used to dissolve bone minerals. And this process is called mineral resorption. Hope this helps.

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more

Electrical charges of ionic bonds