Nephron's

[Gilby101]

Hey guys so I just started homeostasis in my grade 12 biology class, and we started working on the function of the kidneys and nephrons and all that fun stuff. My question is because I have a piss poor chemistry background, seeing as I can't remember anything since grade 10 science.
So I was wondering if someone could explain the chemistry side of how the ions and amino acids and glucose and water move back and forth between the tubules and pertibular capillaries.
I don't know if this is too general or not but anything would be helpful