A. F1 Particles: The F1 headpiece is a component of the ATP synthase complex (Complex V) found in Mitochondria, responsible for ATP synthesis . B. Histones: These are positively charged, basic proteins that organise DNA into nucleosomes, which package to form chromatin and eventually Chromosomes . C. Axoneme: The core structure of Cilia and flagella is known as the axoneme (inferred from context of cell organelles and motility in Chapter 8) . D. Cisternae: The Golgi apparatus consists of flat, disc-shaped sacs or cisternae .