The document describes the main parts of an animal cell including the cell membrane, endoplasmic reticulum, nucleus, ribosomes, Golgi bodies, mitochondria, lysosomes, nuclear membrane, and vacuole. It notes that plant cells contain chloroplasts and a cell wall, which animal cells do not have. The chloroplasts perform photosynthesis and give plants their green color, while the cell wall protects the plant cell and determines its shape.