miércoles, 20 de mayo de 2009

Vacuole

Hello and on this entry i will be talking about the organelle called Vacuole. The vacuole is basically like the maid of the cell. It keeps all the bad material from affecting the cell and it also cleans the cell. The vacuole originated from the fusion between multiple membrane vesicles. The vacuole is just a bigger form of multiple vesicles. This organelles has no basic shape or size, its structure varies from the needs of the cell. So there could be a cell that needs the vacuole alot there for the vacuole must be big but when the cell doesn't need it a lot it will then be small.

The vacuole also plays a major role in autophagy which is maintaining the balance between biogenesis and degradation, of many substances and cell structure in a certain organism. like i mentioned before the aid i the destruction of invading bacteria. The large vacuoles are found in three genera of filamentous, the Thioploca, Beggiatoa, and Theomargarita. THe vacuole sometimes can occupy between 40-98% of the cell.

In the animal cell the vacuole perform mostly subordinate roles. Like assisting in larger processes of exocytosis and endocytosis. Exocytosis is the extrusion process of proteins and lipids from the cell. And endocytosis is the opposite of the exocytosis and can occur in a variaty of forms. Well thank you fro reading my entry.

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