BIO10 Lecture Notes - Meristem, Cork Cambium, Ground Tissue
Document Summary
Parenchyma cells are living cells with uniformly thin walls. They comprise the photosynthetic tissue of a leaf, the soft flesh of fruits, and the storage tissue of roots and seeds. Collenchyma cells have unevenly thickened cell walls, which are their distinguishing characteristic. They form strands along veins in leaves and beneath the epidermis in stems to provide support and strength against the onslaught of strong winds and rains. Sclerenchyma cells have thick and rigid cell walls. They serve as strengthening elements to support mature plant parts. A tissue is a group of cells that performs essentially the same function. Meristematic tissues - tissues primarily concerned with formation of new cells by division. Permanent tissues tissues that cease to divide, having gained new parts or lost old ones to perform specialized permanent functions.
