Diatoms are photosynthesizing algae having a siliceous skeleton (frustule) and are found in almost every aquatic environment including fresh and marine waters, soils, in fact almost anywhere moist.
Cell Organelles present in Diatoms work together to carry out all the life functions.
What is Diatom?
Diatoms as mentioned above are unicellular organisms which occur either as solitary cells or in colonies and can take different shapes.
Individual cells range in size from 2 to 200 micrometers.
A unique feature of diatom anatomy is that they are surrounded by a cell wall made of silica (hydrated silicon dioxide), called a frustule. These frustules have structural coloration due to their photonic nanostructure, prompting them to be described as "jewels of the sea" and "living opals".
Movement in diatoms primarily occurs passively as a result of both ocean currents and wind-induced water turbulence.
Similar to plants, diatoms convert light energy to chemical energy by photosynthesis, but their chloroplasts were acquired in different way.
Diatoms are classified as eukaryotes due to presence of cell organelles i.e. with a nuclear envelope-bound cell nucleus, that separates them from the prokaryotes archaea and bacteria.
Diatoms are a type of plankton called phytoplankton, the most common of the plankton types. Diatoms also grow attached to benthic substrates, floating debris, and on macrophytes.
They comprise an integral component of the periphyton community.
Another classification divides plankton into eight types based on size.
Diatoms are used to monitor past and present environmental conditions, and are commonly used in studies of water quality.
What are Cell Organelles?
Cell organelles are specialized structure which perform specific functions in cells.
Among the more important cell organelles are the nuclei, mitochondria, and ribosomes, which assemble proteins.
Based on the presence and absence of organelles, cells are divided into Prokaryotic and Eukaryotic cells.
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