Parenchyma is a simple permanent plant tissue that contains non-specialized cells with thin cell walls. These cells are loosely packed. Parenchyma helps in storing food and providing support to plants. The parenchyma of stem and roots helps in the storage of water and nutrients.
Parenchyma is a type of simple permanent tissue that makes a major part of ground tissues in plants, where other tissues like vascular tissues are embedded.
Vascular Parenchyma: The parenchyma cells are associated with vascular tissues. These are of two types:
- It is made up of elongated, tapering and cylindrical cells having dense cytoplasm.
- Plasmodesmata connections occur between the cells through pits in the walls
- It stores food and other materials like resins, latex and mucilage
- Absent in monocotyledons
- It is made up of thin-walled cells. The cell wall is made up of cellulose.
- It stores food materials like starch, fats and other substances such as tannins and crystals
- Radial conduction of water takes place by ray parenchymatous cells