While not on youtube, I have a free biochem playlist that you can watch here: www.chadsprep.com/chads-elementary-biochemistry-videos/ Hope this helps and happy studying!
It isn't on youtube, but I do have an Elementary Physical Chemistry playlist that you can view free here: www.chadsprep.com/chads-elementary-physical-chemistry-videos/ It is a semester treatment of mostly thermodynamics (no quantum...sorry). Hope this helps!