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Important Cells in NCERT Biology – 7tricks

Here is the list of Important Cells that are mentioned in NCERT. It is very important for competitive exams or boards!

Important Cells in NCERT          


🌟1. Heterocysts: Specialised cells found in Nostoc & Anabaena which help in fixation of atmospheric nitrogen.
🌟 2. Smallest living cell is Mycoplasma
🌟3. Choanocytes or collar cells – Found in sponges that line the spongocoel & canals.
🌟 4. Cnidoblasts/cnidocytes – Found in Coelenterata/cnidaria which contains the stinging capsules or nematocytes.
🌟 5. Flame cells- Found in flatworms and help in osmoregulation & excretion.
🌟 6. Statocysts- These are balancing organs found in arthropods.
🌟 7. Root hair- Found in the zone of maturation and help in water & mineral absorption.
🌟 8. Guard cell- Encloses stomatal aperture or pore. Bean-shaped but in grasses dumb-bell shaped.
🌟 9. Subsidiary cells- A few epidermal cells, in the vicinity of the guard
cells become specialised in their shape & size & called subsidiary cells
🌟10. Bundle-sheath cells- The vascular bundles are surrounded by a layer of thick-walled bundle-sheath cells.

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