Definitions of as level biology cell structure key words
| Front | Chloroplast |
| Back | Structure: Surrounded by two membranes (chloroplast envelope), oval-shaped Contains grana which contains chlorophyll Function: Site of photosynthesis Extra: Found in some plant cells |
| Front | Lysosome |
| Back | Structure: Spherical sac, surrounded by a membrane. Contain digestive (hydrolytic) enzymes Function: Digestion of unwanted substances such as old organelles or even whole cells |
| Front | Mitochondria |
| Back | Structure: Sausage-shaped and surrounded by an envelope, inner membrane is folded to form finger-like cristae Contains 70S ribosomes Function: Site of aerobic respiration and synthesises lipids |