Anatomy of Flowering PlantsHard
Question
What is not true about sclereids ?
Options
A.These are parenchyma cells with thickened lignified walls
B.These are elongated and flexible with tapered ends
C.These are commonly found in the shells of nuts and in the pulp of guava, per etc
D.These are also called the stone cells
Solution
sclereids are broad sclerenchyma cells which may be oval, spherical, or stellate in structure. Sclereids develop from parenchyma cells, occur singly or in groups to provide stiffness. These may be of different types, such as brachysclereids (stone cells) found in grit of pear, apple macrosclereids (columnar), eg, legume seeds, astrosclereids (star shaped), eg, tea leaves etc.
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