Nucleus: DNA replication and transcription
Rough ER: Protein synthesis
Smooth ER: Lipid and carbohydrate synthesis
Golgi apparatus: Modifying and packaging proteins
Lysosomes: Digestion of waste
Mitochondria: ATP production
Ribosomes: Protein synthesis
Vacuoles: Structural support and storage
Chloroplasts: Photosynthesis
Cell wall: Structural strength
Plasma membrane: Controls substance movement