Identification of parenchyma,collenchyma and sclerenchyma tissues in plants ,striped, smooth and cardiac muscle fibres and nerve cells in animals from prepared slides.
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Characters of Parenchyma:
The cells are generally oval or spherical in shape.
These cells are large and are not packed closely, i.e., intercellular spaces are present.
Each cell has a large central vacuole and a peripheral cytoplasm with a prominent nucleus.
Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.
collenchyma cells provide mechanical support and elasticity to the plant
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