Vacuoles (means "empty space") are cavities in the cytoplasm (especially in plant cells) surrounded by a cytoplasmic membrane, the tonoplast, and filled with a watery fluid called the cell sap containing water and various substances in solution or suspended state. Plants cells have very large distinct vacuoles while in animals, vacuoles are smaller in size. The Plant vacuoles tend to [...]
The following points highlight the four main types of vacuoles. The types are: 1. Sap Vacuoles 2. Contractile Vacuoles 3. Food Vacuoles 4. Air Vacuoles. Type # 1. Sap Vacuoles: They are fluid filled vacuoles or vesicles which are separated from the cytoplasm by a selectively permeable membrane called tonoplast. It has a number of transport systems for the passage [...]
Some of the major function preformed by vacuoles in all cell organisms are as follows: Vacuole is an important organelle which is present in the cells of plants, animals, protests, fungi and bacteria see Fig. 2.8. These cell organelles along with water contain different organic/inorganic molecules. Vacuoles used to contain a variety of enzymes. Apart from water and inorganic/organic molecules, [...]