Meaning of Vacuole

What is Vacuole:

Vacuole is an organelle of plant cells, although it can eventually be seen in prokaryotic cells. Vacuoles are formed from the integration of numerous membranous vesicles, until they acquire a shape according to the needs of the cell in question.

In turn, during the first stage of plant cell development, numerous vacuoles are formed which, as the cell grows, coalesce or fuse to form a single one. This vacuole occupies most of the space and can corner the cytoplasm against the cell wall.

Vacuoles normally house various fluids, among which water and enzymes stand out, and may eventually contain solids such as proteins, salts or sugars. To ensure the containment of these elements, the vacuole is lined with a plasma membrane.

Functions of vacuoles

Among many of their elemental functions, vacuoles perform the following tasks:

  • Turgor pressure: the cells swell thanks to the vacuoles, which increases the greenish color, in order to regulate perspiration.
  • Degradation centers: vacuoles favor the degradation of molecules.
  • Substance store: Vacuoles act as storage centers for substances, such as sugar and proteins.

See also:

  • Plant cell.
  • Parts of the cell.

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