The chemical substance present most abundantly in the middle lamella is
A
Calcium pectinate
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B
Suberin
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C
Lignin
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D
Lamellenin
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Solution
The correct option is A Calcium pectinate Middle lamella is a thin amorphous cementing layer between two adjacent cells. It is the first layer, which is deposited at the time of cytokinesis. It is composed of calcium and magnesium pectates. During ripening of the fruits, the pectic compound of the middle lamella solubilizes to a jelly-like material making the fruits soft.