The document describes the main organelles of an animal cell and compares each one to something familiar. It discusses the nucleus, which holds DNA; the endoplasmic reticulum and ribosomes, which help make and transport proteins; the mitochondria, which provide energy; and other organelles like the Golgi body, lysosomes, cell membrane, vacuoles, and chloroplasts, comparing each to things like trains, factories, power houses, mail carriers, walls, and garbage trucks.