Middle lamella in a angiospermic leaf is composed of

Lignin and hemiceaulose

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Cellulos and xylan

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Cellulose, hemicelfulose and xylan

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Calcium and magnesium pectate

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Solution

The correct option is B Calcium and magnesium pectate
Middle lamella is the outermost layer of cell wall which separates the two adjacent cells. It is made up of calcium and magnesium pectate. Primary cell wall develops on both sides of middle lamella. It is followed by secondary cell well. This Is made up of cellulose, hemicellulose, xylem, and lignin.
Thus, the correct answer is option D.

Suggest Corrections

	I		II
(p)	Plasma membrane mainly contains	(i)	Hemicellulose
(q)	Middle lamella is mainly composed of	(ii)	Calcium pectate
		(iii)	Proteinaceous filaments
		(iv)	Proteins embedded m phospholipid bilayer