VACOULES & VESICLES

VACOULE

• A Vacuole is a membrane-bound Organelle which is present in all plant & fungal cells and in some animal cells.
• Vacuoles are filled with water containing inorganic and organic molecules including enzymes in solution.
• Vacuoles are formed by the fusion of multiple membrane vesicles.
• The organelle has no basic shape or size; its structure varies according to the needs of the cell.
• In some cases they can have some solids engulfed in them.

FUNCTIONS OF VACUOLES

• Isolating materials that might be harmful or a threat to the cell
• Containing waste products
• Containing water in plant cells
• Maintaining internal hydrostatic pressure or turgor within the cell
• Containing small molecules

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• Exporting unwanted substances from the cell
• Allows plants to support structures such as leaves and flowers due to the pressure of the central vacuole

VESICLE

• A vesicle is a small organelle within a cell, consisting of fluid enclosed by a membane.
• Vesicles can form naturally and artificially
• They act as chemical chambers
• Vesicles are involved in metabolism, transport, and enzyme storage