Answer:
Used to make bread.
Explanation:
Yeast is a single-celled fungus. It is able to ferment sugar, producing alcohol and carbon dioxide in the process. It has long been used to make beer and wine as well as bread (the carbon dioxide causes the dough to rise).
Your question should have a picture in other to answer the question:)
In both cases the electron transport chain<span> uses the energy to pump hydrogen ions across a membrane</span>
No, they are not connected.
