Since metabolism involves the synthesis and breakdown of non-protein cell components like mono- and polysaccharides, lipids, and ATP , there is not much role for gene mutations to influence the process.
There is not much energy in the peptide bonds of cellulose, but at least it is very easy to break down. C. The breakdown of cellulose into fructose is an endergonic reaction, but an enzyme can reverse the equilibrium. D. Cellulose is very difficult to break down into glucose, but it contains a lot of energy.