Nutrients cross the membrane wall with the help of protein channels.
A mutation could do that.
Glycolysis results in the formation of 2 ATP molecules, 2 Pyruvic Acid molecules (Or Pyruvate), and 2 NADH molecules.
Well for internal <span>they have proteins that respond to events inside the cell which are called internal regulators! They allow the cell cycle to move on only when certain processes have happened inside the cell internally. The opposite for external and it means p</span><span>roteins that respond to events outside the cell are called </span>external regulators<span>.
Hope this helps</span>
