>Remember that "cancer" is just normal cells that grow out of control. So if your normal cells are functioning normally then cancer cells will also function nor

>Remember that "cancer" is just normal cells that grow out of control. So if your normal cells are functioning normally then cancer cells will also function normally. But that only holds if growing out of control has no impact on normal function. If, say, cancer cells reproduced faster than their own mitochondria, then those cancer cells would function differently from normal cells in a particular sense: they could metabolize sugars into pyruvate but not all the way to CO2 + H2O. And that in turn could have other consequences.