SIMPLE PERMANENT PLANT TISSUES CLASSIFICATION

PARENCHYMA CELLS HAVE THIN CELL WALLS LIVING CELLS LOOSELY PACKED CELLS LARGE INTERCELLULAR SPACES (SPACES BETWEEN CELLS)

FUNCTIONS OF PARENCHYMA TISSUE PROVIDES SUPPORT STORES FOOD FOR THE PLANT PHOTOSYNTHESIS HELPS THE AQUATIC PLANTS TO FLOAT BY MAKING THEM BOUYANT

CHLORENCHYMA

AERENCHYMA

COLLENCHYMA

FUNCTIONS OF COLLENCHYMA IT ALLOWS EASY BENDING IN VARIOUS PARTS OF PLANTS WITHOUT BREAKING THEM MECHANICAL SUPPORT TO PLANTS PRESENT IN LEAF STALKS BELOW EPIDERMIS

COLLENCHYMA CELLS CELLS ARE THICKENED IRREGULARLY AT CORNERS VERY LITTLE INTER CELLULAR SPACE

SCLERENCHYMA

SCLERENCHYMA TISSUE MAKES THE PLANT HARD AND STIFF CELLS ARE DEAD CELL WALLS CONTAIN LIGNIN ( CEMENT LIKE SUBSTANCE WHICH HARDENS THE CELL) NO INTERNAL SPACE INSIDE THE CELL GIVES MECHANICAL SUPPORT

LOCATION OF SCLERENCHYMA GRITTY FRUIT eg: GUAVA (AMROOD) STEMS AROUND VASCULAR BUNDLES LEAF VEINS HARD COVERING OF SEEDS AND NUTS

EPIDERMIS UPPER MOST LAYER OF CELLS A SINGLE LAYER OF CELLS IS PRESENT IT IS PROTECTIVE FOR THE PLANT. NO INTERCELLULAR SPACES, NO SPACE BETWEEN CELLS BECAUSE THEY ARE PROTECTIVE IN FUNCTION.

RHOEO PLANT

COMPLEX PERMANENT TISSUE

PHLOEM