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Which of these is the main component of the middle lamella?

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Which of these is the main component of the middle lamella?

(a) Calcium phosphate

(b) Calcium silicate

(c) Calcium carbonate

(d) Calcium pectate

I got this question in an interview.

The above asked question is from Eukaryotic Cells and it’s Organelles topic in division Cell : The Unit of Life of Biology – Class 11

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Correct option is (d) Calcium pectate

Best explanation: The middle lamella is a layer present between two plant cells which joins the cell walls of both the cells. It is the first layer which is formed and deposited during cytokinesis. It mainly contains calcium pectate.

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