Glycolysis produces NADH. However, NADH cannot cross the inner mitochondrial membrane to be used in the electron transport chain (respiratory chain). The malate-aspartate shuttle in some animal cells transfers electrons from cytosolic NADH to the matrix. A diagram of the malate-aspartate shuttle is given below. You can use it as a reference to answer parts (a) and (b). a) How is oxaloacetate modified to a form that can be transported out of the matrix?b) Which compound is transported across the inner membrane in exchange for malate?