For aerobic respiration, a variety of substances must be in a state of flux across the inner mitochondrial membrane. Assuming a brain cell in which glucose is the sole energy source, indicate for each of the following substances whether you would expect a net flux across the membrane and, if so, how many molecules will move in which direction per molecule of glucose catabolized. (a) Pyruvate (b) Oxygen (c) ATP (d) ADP (e) Acetyl CoA (f) Glycerol-3-phosphate (g) NADH (h) FADH2 (i) Oxaloacetate (j) Water (k) Electrons (l) Protons