A cross section of a chloroplast showing membranes and the spaces between membranes is shown in Figure Grana Stroma Thylakoid Figure 1.A diagram of the cross section of a chloroplast (a) Describe the major process that takes place in this eukaryotic organelle_ (b) Explain the function of the structure labeled with an X in Figure 1. (c) Identify the location where carbon fixation occurs on the figure below: (d) Explain the formation of a proton gradient in the production of ATP_ Predict the effect of the removal of the final electron acceptor on the rate of carbon fixation by the chloroplast: Justify your prediction_