Electrons play an important role in cellular respiration. a) Where do the electrons come from? What causes them to 'free' up? b) What molecules 'pick up' the electrons? Include 2 examples of these. c) Where do the electrons go and how do they help in the process of ATP synthesization?

part A

the electrons are usually the currently of chemical reactions

B)it returns to glycolysis to pick up more electrons

ex. gulycolysis yields 2ATP

C) they goes to Krebs cycle

gold i'm pretty sure i might be wrong

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.