Complex sentence: Vitamin B12 (cobalamin), for example, plays a crucial role in the human body, while coenzyme B12, its derivative, is found in the metabolisms of every type of cell in our bodies.
Split into simpler sentences: Vitamin B12 (cobalamin), for example, plays a crucial role in the human body. Coenzyme B12, its derivative, is found in the metabolisms of every type of cell in our bodies.