NADH and FADH2 are the forms of NAD and FAD. The four stages of aerobic cellular respiration take place in the mitochondria and the of the cell. Cellular respiration that takes place in the presence of oxygen is called and is the more efficient form of respiration. At the end of glycolysis, a six-carbon glucose molecule has been converted into two three-carbon molecules of . Acetyl-CoA combines with to form citric acid and start the Krebs cycle. At the end of the electron transport chain, the electrons combine with to form water.

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.