This document describes the structure and function of various cell organelles found in plant and animal cells. It lists and defines the key components of cells including the cell wall, cell membrane, nucleus, cytoplasm, endoplasmic reticulum, ribosomes, mitochondria, vacuoles, lysosomes, chloroplasts, nucleolus, Golgi apparatus, centrioles, and cytoskeleton. Each component's location, description, and main function is outlined to provide an overview of the essential parts and processes within plant and animal cells.