Give the function of a pith,cambium and cortex
1. Pith: The pith is a soft, spongy tissue found in the center of stems and roots of plants. Its main function is to store and transport nutrients and water throughout the plant. It also provides mechanical support to the stem or root.
2. Cambium: The cambium is a thin layer of cells found between the xylem and phloem in the vascular tissue of plants. Its main function is to produce new cells for growth, allowing the plant to increase in girth. The cambium produces both the secondary xylem (wood) and secondary phloem (inner bark).
3. Cortex: The cortex is the outermost layer of cells in the stems and roots of plants. Its main function is to provide support and protection to the plant. It also plays a role in the storage of nutrients and water, and it helps regulate gas exchange and water movement.
1. Pith: The pith is a central region found within the stems of dicot plants. Its main function is to store and transport nutrients throughout the plant. It consists of parenchyma cells that store starch, oils, and proteins. The pith also provides mechanical support to the stem.
2. Cambium: The cambium is a thin layer of cells found in the stems and roots of vascular plants. Its primary function is to produce new cells for secondary growth, which allows the plant to increase its girth over time. The cambium forms two different types of tissues: the vascular cambium, which produces secondary xylem (wood) on the inside and secondary phloem on the outside, and the cork cambium, which produces the cork cells of the bark.
3. Cortex: The cortex is a region of tissue found between the epidermis and the vascular tissues in stems and roots. It serves several functions, including storage, protection, and photosynthesis. The cortex often contains specialized cells, such as parenchyma cells that store water, nutrients, and carbohydrates. Additionally, it acts as a protective barrier against mechanical damage and pathogens. In certain plants, the cortex may also contain chloroplasts, allowing it to perform photosynthesis.