DoorstepTutor (NEET, JEE, IMO, NSO, NTSE...)'s video: Simple Permanent Plant Tissue: Parenchyma Collenchyma Sclerenchyma NEET Botany

Dr. Manishika in this lecture explains Parenchyma is the most common simple permanent tissue. It consists of relatively unspecialized unspecific cells with thin cell walls, loosely packed. They are living cells, loose, large space and stores food It contains chlorophyll and performs photosynthesis, and then it is called chlorenchyma. In aquatic plants, large air cavities are present in parenchyma to help them float. Such a parenchyma type is called aerenchyma Collenchyma – flexibility and bending without breaking; provides mechanical support – seen in leaf stalks below the epidermis. Living, elongated cells which are irregularly thickened with little intercellular space Sclerenchyma – makes plant hard and stiff – dead cells (husk of coconut) – long and narrow as walls are thickened by lignin. Thick wall with no internal space. It is present in stems, around vascular bundles, in the veins of leaves and in the hard covering of seeds and nuts – have lignified thick wall NEET: https://www.doorsteptutor.com/Exams/NEET/ NSTSE: https://www.doorsteptutor.com/Exams/NSTSE/ AIIMS: https://www.doorsteptutor.com/Exams/AIIMS/ Exam Preparation - https://www.doorsteptutor.com/Exams/ More interesting topics subscribe at TestPrep: https://www.youtube.com/c/TestPrep NCERT, Yojana, Kurukshetra, Down to Earth, Science, Social Studies and More interesting topics subscribe at Examrace: https://www.youtube.com/c/Examrace NCERT, Yojana, Kurukshetra, Down to Earth, Science, Social Studies and More interesting topics subscribe at ExamraceHindi: https://www.youtube.com/c/ExamraceHindi For kids learning with kids videos subscribe to FunProf: https://www.youtube.com/c/FunProf Websites https://www.examrace.com https://www.doorsteptutor.com https://www.flexiprep.com https://www.examtestprep.com https://www.jobduniya.com