Nucleus
Contains genetic material (DNA) and controls cell activities.
Cytoplasm
Liquid where chemical reactions occur, mainly composed of water.
Cell membrane
Flexible outer layer controlling substances entering and exiting the cell.
Mitochondria
Organelles in cytoplasm releasing energy from glucose.
Cell wall
Tough outer layer with cellulose providing plant cell strength and support.
Vacuole
Space in cytoplasm with cell sap, maintaining cell firmness.
Chloroplasts
Structures in plant cells containing chlorophyll for photosynthesis.