ok, folks, it's NEPHRON TIME!!  What are the sections of the nephron? What is the primary step or process that happens in each section?  Where is active transport important?  What substances get moved by active transport?  What energy carrying molecule is used to power active transport?  Which organelle is the place this energy-carrying-supermolecule gets made? (So.... we'd expect a lot of these organelles in the cells where a lot of active transport happens, hmmmm.....?) And why is this important in the big picture of how urine is produced and how the end product turns out, in terms of the concentrations of what it's made of?

Phew.... that's a lot of stuff to comment on.  Just pick one or two things and let's work as a team here. :-)

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