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Question

Element necessary for the middle lamella is ________.

A
Ca
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B
Zn
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C
K
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D
Cu
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Solution

The correct option is A Ca
The middle lamella is the pectin layer that cements two adjacent cell walls. The middle lamella is made of calcium and magnesium pectates. This is why Calcium is necessary for the middle lamella.


Zinc is an activator of enzymes such as carbonic anhydrase.
Copper takes part in electron transport as a part of plastocyanin.
Potassium maintains membrane permeability.

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