HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of cell is found in the hard or gritty parts of fruits and vegetables?
A
parenchyma cells
B
collenchyma cells
C
sclerenchyma cells
D
None of the above
Explanation: 

Detailed explanation-1: -sclerenchyma, in plants, support tissue composed of any of various kinds of hard woody cells. Mature sclerenchyma cells are usually dead cells that have heavily thickened secondary walls containing lignin.

Detailed explanation-2: -Sclereids are a reduced form of sclerenchyma cells with highly thickened, lignified cellular walls that form small bundles of durable layers of tissue in most plants. The presence of numerous sclereids form the cores of apples and produce the gritty texture of guavas.

Detailed explanation-3: -Sclerenchyma tissues are located in several areas. E.g. Sclereids are found in the shells of nuts, stones of fruits and fibres are abundantly found in the inner bark, wood, leaf veins, etc.

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