sclerenchyma is a simple permanent tissue that forms part of the ground tissue system in plants . Sclereids are a specific type of sclerenchyma cell characterized as being spherical, oval, or cylindrical, and consisting of highly thickened dead cells with very narrow cavities (lumen). They are commonly found in the fruit walls of nuts, the pulp of fruits like guava and pear, and the seed coats of legumes. Mastering these anatomical classifications is a high-priority strategy for medical aspirants, as approximately 95% of NEET Biology questions are derived directly from the NCERT textbooks .