Vacuole By Kurt Smetana Period 2 Types of Vacuoles Food Vacuoles - formed by phagocytosis Tractile Vacuoles - pumps excess water out of the cell. Central.

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Presentation transcript:

Vacuole By Kurt Smetana Period 2

Types of Vacuoles Food Vacuoles - formed by phagocytosis Tractile Vacuoles - pumps excess water out of the cell. Central Vacuoles - enclosed by a membrane called tonoplast.

Functions of Vacuoles Place to store organic compounds, such as proteins stockpiled in vacuoles of storage cells in seeds. Plant cell’s main repository of inorganic ions, such as potassium and chloride. Functions as plant cell’s lysosomal compartment Disposal sites for metabolic by-products that would be dangerous in cytoplasm

More Functions Help protect the plant against predators because they contains poisonous or unpalatable compounds. Elongates to absorb water, allowing the plant cell to become larger with a minimal investment in new cytoplasm.

Creation of Vacuoles Developed by coalescence of smaller vacuoles. These are derived from the endoplasmic reticulum and Golgi apparatus.

Other Important Facts Is an integral part of the endomembrane system. Only appears in plant cells. Some are enriched in pigments that color the cells. Like vesicles, Vacuoles are membrane- enclosed sacs within the cell.

Questions What is the name of the membrane that is around a central vacuole? A. Tonoplast B. Endoplasmic Recticulum C. Golgi Apparatus Vacuoles are found in… A. The interior of animal cells B. The interior of plant cells C. The cells inside a cow’s intestine

Questions The three types of Vacuoles are… A. Food, Tractile, Phagocytosis B. Tractile, Central, Organic C. Food, Tractile, Central

THE END.