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A. Parenchyma and Collenchyma NOTEImportant Question from KERALA
B. Parenchyma and Sclerenchyma
C. Sclerenchyma and Collenchyma
D. Collenchyma and Parenchyma
Parenchyma cells
Parenchyma forms the major component within organs. The cells of the parenchyma are generally isodiametric. They may be spherical, oval, round, polygonal or elongated in shape. Their walls are thin and made up of cellulose. They may either be closely packed or have small intercellular spaces. The parenchyma performs various functions like photosynthesis, storage, secretion.
Sclerenchyma cellsSclerenchyma consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits. They are usually dead and without protoplasts. On the basis of variation in form, structure, origin and development, sclerenchyma may be either fibres or sclereids.
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