Feast of ST. PETER & ST. PAUL.
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Europe
Dear Students, Watch this video on 25 interesting facts on the continent we will be studying-Europe. Thank you.
Plant Tissues
PLANT TISSUES I. Meristematic tissue: Characteristics: 1. Cells are small. 2. Cell walls thin. 3. Nuclei large and conspicuous. 4. Cells are without vacuoles. 5. Cells actively dividing. Location: 1. Tip of roots, tips of stem and branches. 2. Between bark and wood of the tree and is responsible for increase in the diameter of the stem. II. Permanent Tissues: A. Simple Permanent Tissues: (i ) Protective Tissue: Characteristic: Cell wall thick. Location: Surface of roots, stems, leaves Function: Provide protection Example: Epidermis of leaves, which secretes a waxy water-proof substance. (ii) Supporting Tissue: Parenchyma Collenchyma Sclerenchyma 1. Characteristics a. Spherical. b. Cell wall thin. c. Large intercellular spaces present between the cells. d. Consists of living cells at maturity. a. Elongated cells. b. Cell wall thick at the edges.