I’m referring to the electricity that is involved with the heart beating and brain signals. How does it get into us to begin with when we are a fetus, and how does it keep being produced?
In: Biology
The interesting stuff happens in the mitochondria; the “powerhouses” in each of our cells. The food we eat is used to power molecular processes that generate a “proton gradient” (i.e. an electrical potential) across a cell membrane. (Protons are positively charged hydrogen ions.) The proton gradient provides the energy to make a molecule called ATP, which is the molecule that carries the energy to where in the cell it is needed. The details of the molecular machine that makes ATP are simply amazing: [https://www.youtube.com/watch?v=b_cp8MsnZFA](https://www.youtube.com/watch?v=b_cp8MsnZFA)
(Edit: spelling)
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