Vacuole
Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
A vacuole is a membrane-bound organelle found in eukaryotic cells that acts as a storage compartment for various substances, including water, nutrients, waste products, and pigments. Vacuoles are typically larger and more prominent in plant cells, where they can occupy up to 90% of the cell’s volume.
The primary function of vacuoles is to regulate the water balance and turgor pressure within the cell. Vacuoles also play a key role in storing and recycling nutrients, such as amino acids and sugars, and breaking down and disposing of waste products through a process called autophagy.
In plant cells, vacuoles can contain pigments that give flowers and fruits their colors, and may also serve to deter herbivores by storing toxic compounds. Some plant vacuoles also have a contractile function, allowing the cell to change its shape in response to external stimuli.
In summary, vacuoles are important organelles in eukaryotic cells that play multiple important roles in cell function, including storage, nutrient and waste management, and water regulation.
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