1a. what generates proton gradient? where is it generates and
how does that limit amount of gradient possible?
1b. What is oxygen used for during metabolism, and what happens
if it is absent?
1c. What molecule increases in the cell when oxygen is absent,
and what cellular process related to cell death can this trigger?
How is this mechanism an anti-cancer mechanism?
1d. In multicellularity, what problem arises in reproduction by
only a subset of the aggregate cells? Does this...