What is NOT common between mitochondria & chloroplasts?

Each mitochondrion is a double membrane-bound structure with the outer membrane and the inner membrane dividing its lumen distinctly into two aqueous compartments, i.e., the outer compartment and the inner compartment. The inner compartment is called the matrix. The outer membrane forms the continuous limiting boundary of the organelleThe inner membrane forms a number of infoldings called the cristae (sing.: crista) towards the matrix  The two membranes have their own specific enzymes associated with the mitochondrial function. Mitochondria are the sites of aerobic respiration

The stroma of the chloroplast contains enzymes required for the synthesis of carbohydrates and proteins.