Question

What is the nature of cell-walls in diatoms?

Answer 1

hey here is your answer

The cell wall  construction of diatoms known as Frustule which consists of two thin overlapping shells fitting into each other just as a soap-box. Their walls  are made up of silica. When the diatoms  die, the silica in their cell wall gets deposited in the form of diatomaceous earth.

Answer 2

Diatoms are the example of the Kingdom Protists. In this organism, the wall of the cell are like 2 shells that can overlap. It seems as if the cell wall is a soap box.

Silica are found in their walls. This makes the cell strong and does not get destroyed.

In this way, they leave deposits of their wall in the soil which is then very useful in works like filtering of oils, polishing, etc.