Golgi body is a unique cytoplasmic organelle of animal cell. They are few in number. They are usually found in a group close to nucleus in most of the eukaryotic cells. In lower plants, Golgi bodies remain scatteredly distributed in the cytoplasm.
Discovery: In 1898, an Italian scientist Camelo Gulp first discovered Golgi body.
Structure: Three components are present in Golgi bodies
(i) Compressed sac/cysternae
(ii) Minute vacuole/vesicles
(iii) Large cavity/vacuole
- Compressed sac: The long, compressed tubular organs different in length which are arranged parallel) are called cysternae.
- Minute vacuoles: Below the cysternae, there are some sac like structures which are smaller in size are known as vesicles
- Large vacuoles: The round sac like structures lying close to cysternae is known as vacuole.
Chemical structure: The different components of Golgi bodies, mentioned above are composed of phospholipids, protein, different enzymes and vitamin “E”.
(i) It secretes the essential elements for the formation of cell wall.
(ii) It acts as a store house for different substance.
(iii) It also secretes some non protein substances.