| A | B |
| Nucleus | The control centre of the cell's activities |
| Nucleolus | Small circular structure(s) within the nucleus; may be involved in protein synthesis |
| Chromosomes | Genetic material found in the nucleus |
| Mitochondria | Where energy in the form of ATP is produced |
| Ribosomes | Very small structures that make protein; composed of RNA |
| Endoplasmic reticulum | Transport system in the cell, can be Smooth or Rough |
| Golgi apparatus | Special enzymes that package up proteins |
| Lysosome | Special type of vacuole that breaks down large molecules with enzymes and chemicals |
| Chloroplast | Where photosynthesis occurs |
| Cell membrane | Outer covering of cell; it controls what moves in and out of the cell |
| Cell wall | Protects and supports plant cells |
| Eukaryote | Cell that has a membrane-bound nucleus |
| Prokaryote | A cell with no nuclear membrane and few (if any) membrane bound organelles |
| Vacuole | Liquid filled sacs, stores wastes, water, food; supports plants |
| Cytoplasm | Gel-like substance in which cells life processes take place |
| Centriole | Helps to divide the cell so it can reproduce |
| Microtubules | Helps in movement of the cell |
| Mitochondrion | Stores energy that the cell needs to work |
| Cytoskeleton | Filaments and fibers that support cell structure & movement |
| Centrioles | Animal cell part formed by microtubules |
| Flagellum | Long "threads" made of 9 pairs of microtubules that help unicells move about |
| Cilia | Short 'threads that move substance along cell surface |
| Microfilaments | Long fibers in cytoskeleton that help move cytoplasm inside the cell |