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SIMPLE PERMANENT TISSUE
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For more information: • http://www.7activestudio.com • [email protected] • http://www.7activemedical.com/ • [email protected] • http://www.sciencetuts.com/ • [email protected] • Contact: +91- 9700061777, • 040-64501777 / 65864777 • • 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force The Joy of Happy Learning -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. • SIMPLE PERMANENT TISSUE: Permanent tissue is differentiated into two types. 1 Simple Permanent tissue 2 Complex Permanent tissue, The simple permanent tissue is mainly classified into three types. Parenchyma Collenchyma Sclerenchyma • Parenchyma: Parenchyma is a type of permanent tissue. It consists of unspecialized cells with thin cell walls. The cells of this tissue are living. The cells are loosely packed, which forms large spaces between cells are called as intercellular spaces. The tissue provides support and also stores food. • The parenchyma also presents in another two different forms. Chlorenchyma Aerenchyma Chlorenchyma: The parenchyma tissue consisting of chlorophyll and performs photosynthesis are called as chlorenchyma. Aerenchyma: The parenchyma with large air cavities are called as aerenchyma. Aerenchyma provides buoyancy to the plants and helps them to float. The parenchyma tissue stores nutrients and water. Collenchyma: Collenchyma is another permanent tissue. The cells of this tissue are living, elongated and irregularly thickened at corners. It provides flexibility in plants without breaking. • It also provides mechanical support. The tissue is present below epidermis in leaf stalks. • Intercellular spaces are present. Sclerenchyma: Sclerenchyma is another type of permanent tissue. • The cells of this tissue are dead; hence the plant is hard and stiff. Ex: Husk of a coconut. The cells are long, narrow and thickened walls due to the presence of lignin. Intercellular spaces are absent in some conditions. It also provides strength to parts of the plant. The tissue is present in stems, in the veins of leaves, hard covering of seeds and nuts, and around vascular bundles.
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