9.1.Cell – The Unit of Life Cell- Cell Theory and Cell as the Basic Unit of Life- Overview of the Cell. Prokaryotic Cells, Ultra Structure of Plant Cell (Structure in detail and Functions in brief), Cell Membrane, Cell Wall, Cell Organelles: Endoplasmic Reticulum, Mitochondria, Plastids, Ribosomes, Golgi Bodies, Vacuoles, Lysosomes, Microbodies, Centrosome and Centriole, Cilia, Flagella, Cytoskeleton and Nucleus. Chromosomes: Number, structural organization; Nucleosome