.

Correspondingly, how do diatoms eat?

Food. In the ocean, diatoms are eaten by tiny animals called zooplankton. Zooplankton in turn sustain larger organisms, like fish, so many animals in the ocean depend on diatoms either directly or indirectly for their survival.

Subsequently, question is, how can diatoms be recognized easily? Diatoms. Diatoms are unicellular, microscopic algae easily recognized by their distinctive siliceous cell walls. Pennate diatoms may possess a slit-like structure called a raphe along the surface of one or both valves that allows the cell to move by secreting polysaccharides.

Likewise, people ask, how do Bacillariophyta move?

The centric diatoms lack motility, but the pennate diatoms may possess motility. Cells with a structure termed a raphe are able to move across surfaces.

How are diatoms useful to us?

A very common use for diatoms is for filtration. The fine structures of diatom shells trap foreign particles in fluids, such as dirt, lint, hair and some other microscopic organisms. Diatoms are often used to filter water, particularly water in hot tubs and swimming pools.