C is the answer to your problem
Answer:
Loss of electrons and hydrogen ions are generally involved in oxidation reactions in biological systems
Explanation:
The substrates involved in the oxidation reaction in biological systems often loss hydrogen ion detached from itself and thereafter an electron is removed. The substrates are then oxidized by the addition of oxygen to the substrates.
These processes are catalyzed by Oxidoreductases and oxidation takes place alongside with reduction.
B I think(sorry if you get this wrong)
Cheese because it is made of mold and mold is good for you, sometimes. Hope this helped!
