The document summarizes the key parts of animal cells, 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 that animal cells do not have. The cell membrane protects the cell, the endoplasmic reticulum transports proteins, the nucleus controls the cell, ribosomes produce proteins, and mitochondria generate energy.