diatoms
ciliates
diatom
Diatoms are algae, diatoms are protists. Diatoms are placed in the division Bacilliariophyta, which is distinguished by the presence of an inorganic cell wall composed of hydrated silica.
some protists have cell walls All have some sort of membrane. Only some protists have cell walls, mostly algae.
plants contain cellulose in their cell wall while fungi contains chitin as a major component of its cell wall.Besides fungi are absorptive heterotrophs while plants are photosynthetic autotrophs.fungi lacks centrioles and contains chitin in its cell wall(as described earlier) but certain protists have centrioles and produce cellulose in their cell wall.some protists also contain some pigments like Chl.a Chl.b caroteins etc while fungi does not.Due to these reasons Fungi has separate kingdom.
Its really three and they are Cell wall composition, Multicellularity and Photosynthetic pigments
a. protozoa - Consumers b. slime molds - Saprophytic c. algae - Photosynthetic d. water molds - Parasitic
diatoms
Diatoms
There is no longer a Kingdom of Protists. They are not a monophyletic group (clade). So, the answer is some do some don't. Algae (a type of photosynthetic protist) tend to have a cell wall. Protozoa (the animal like protists) do not. Most single cell protozoa have a pellicle to protect the cell.
Diatoms are algae, diatoms are protists. Diatoms are placed in the division Bacilliariophyta, which is distinguished by the presence of an inorganic cell wall composed of hydrated silica.
some protists have cell walls All have some sort of membrane. Only some protists have cell walls, mostly algae.
plants contain cellulose in their cell wall while fungi contains chitin as a major component of its cell wall.Besides fungi are absorptive heterotrophs while plants are photosynthetic autotrophs.fungi lacks centrioles and contains chitin in its cell wall(as described earlier) but certain protists have centrioles and produce cellulose in their cell wall.some protists also contain some pigments like Chl.a Chl.b caroteins etc while fungi does not.Due to these reasons Fungi has separate kingdom.
Its really three and they are Cell wall composition, Multicellularity and Photosynthetic pigments
They are both heterotrophs.
Protists only have one cell.
I believe you a thinking about Diatoms. They have a shell, not a cell wall, made of silica, the same material glass is made of. They are a spectacular sight under a microscope. Because of their Strong rigid shell and reflective properties they are used in many commercial products like reflective paints, abrasives, and formerly cosmetics.
Eukaryotic. This means that it has advanced cell structure, including a nucleus. Protists were the first Eukaryotes.
Protists only have one cell.