As you get older, your mitochondrial dna mutates which means that your energy production will decrease. using the gibbs free energy equation: δg = δh – tδs, explain old age.

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.