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 cel...