I mean, ATP would be more like the batteries, yeah. The mitochondria would be the whole power plant, and the little spinny generators would be the big spinny generators.

It varies. I didn’t get the phrase parroted at me until in college, when the professor was making fun of the phrase. I bet it was some slide that was created by a teaching board or textbook maker, and just copied ad nauseam.

It’s not always about the cost saving. Sometimes it’s just because it gets more customers! Brominated flour, as an example.

I think most of us do know, and that’s one reason why it’s being poo-pooed.

I mean, that’s been the standard since at least ocarina of time. I remember rolling my eyes at the other characters reading your responses back to you.