💈Tissues💈 Tissues are categorized as − Plant Tissue Animal Tissue ♦️Plant Tissue Following are the major types of plant tissue − ➖Meristematic Tissues ➖Permanent Tissues ▪️Simple Permanent Tissues ➖Parenchyma ➖Collenchyma ➖Sclerenchyma ➖Epidermis ▪️Complex Permanent Tissue ➖Xylem ➖Phloem ▪️Meristematic Tissue ➖Meristematic tissue mainly consists of actively dividing cells, and helps in increasing the length and thickening the stems of the plant. ➖Meristematic tissue, commonly, present in the primary growth regions of a plant, for example, in the tips of stems or roots. ➖Depending on the region (where the meristematic tissues are found); meristematic tissues are classified as apical, lateral, and intercalary (see the image given below). ➖Apical meristem (as shown in the above image) is present at the growing tips of stems and roots and helps in their growth. ➖Lateral Meristem is found in stem or root region and helps in their growth. ➖Intercalary meristem is found at the base of the leaves or internodes (on twigs) and helps in growth. 🔸Permanent Tissue Cells of meristematic tissue later differentiate to form different types of permanent tissue. Permanent Tissue is further categorized as − ➖Simple Permanent Tissue and ➖Complex Permanent Tissue 🔸Simple Permanent Tissue Simple Permanent Tissue further categorized as − ➖Parenchyma ➖Collenchyma ➖Sclerenchyma ➖Epidermis 🔸Parenchyma tissue provides support to plants and also stores food. 🔸Sometimes, parenchyma tissue contains chlorophyll and performs photosynthesis, in such a condition, it is known as collenchyma. 🔸The collenchyma tissue provides flexibility to plant and also provides mechanical support (to plant). 🔸The large air cavities, which are present in parenchyma of aquatic plants, give buoyancy to the plants and also help them float, are known as aerenchyma. 🔸The Sclerenchyma tissue makes the plant hard and stiff. For example, the husk of a coconut is made up of sclerenchymatous tissue. 🔸The cells of Sclerenchyma tissue normally are dead. 🔸The outermost layer of cells is known as epidermis. 🔸The epidermis is usually made up of a single layer of cells. 🔸The entire surface of a plant has the outer covering of epidermis, which protects all the parts of the plant. 🔷Complex Permanent Tissue The complex tissue, normally, consists of more than one type of cells which work together as a unit. Complex tissues help in the transportation by carrying organic material, water, and minerals up and down in the plants. 🔸Complex Permanent Tissue is categorized as; ➖Xylem ➖Phloem 🔸Xylem, normally, consists of tracheid, vessels, xylem parenchyma, and xylem fibers. 🔸Xylem is accountable for the conduction of water and mineral ions/salt. 🔸Phloem, normally, is made up of four types of elements namely − ➖Sieve tubes ➖Companion cells ➖Phloem fibers and ➖Phloem parenchyma 🔸Phloem tissue transports food from leaves to other parts of the plant. Join For More https://whatsapp.com/channel/0029Va9492L3QxRv5MtNFF0Y/151