1.1.5 The two most important energy conversion processes, photosynthesis(occurring in the inner membranes of chloroplasts) and oxidative phosphorylation(ocurring in the inner membranes of mitochondria) are carried out by membrane systems 1. 1.6 Certain biosynthesis(e.g, synthesis of lipids and some proteins, smooth ER )occur on biomembranes1.1.5 The two most important energy conversion processes, photosynthesis (occurring in the inner membranes of chloroplasts) and oxidative phosphorylation (ocurring in the inner membranes of mitochondria) are carried out by membrane systems. 1.1.6 Certain biosynthesis (e.g., synthesis of lipids and some proteins, smooth ER?) occur on biomembranes