Question

✏what is a nature of cell -wall in diatoms?

Answer 1

Two thin shells, which overlap each other, form the cell walls of diatoms. These are known as Frustules. 

They resemble a small box and their composition is silica. When the diatoms die, the cell wall disintegrates and the silica in them get deposited in the form of diatomaceous earth.

Answer 2

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Answer Of Your Question☺️
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Cell Wall diatoms are made of silica.Their cell wall construction is known as frustule. It consists of two thin overlapping shells that fit into each other such as a soap box. When the diatoms die, the silica in their cell walls gets deposited in the form of diatomaceous earth. This diatomaceous earth is very soft and quite inert. It is used in filtration of oils, sugars, and for other industrial purposes.
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