Question

Why the cell wall of dianoflagellates called 'armoured'? And pls don't spam frnds.Its a kind request.

Answer 1

The peripheral part of the cell has a series of membranes called the amphiesma. In “armored” species polysaccharide deposited between the membranes forms rigid plates called thecae. “Naked” cells lack thecae. Dinoflagellate DNA always exists in a crystalline form in the nucleus, unlike other eukaryotes.

Answer 2

Answer:

In armored forms, these vesicles contain the thecal plates, cellulose plates that are the "armor". ... Armored dinoflagellates have two major plate regions composed of two to 100 individual plates. The edges of the plates overlap, sliding apart as the cell increases in size and allowing the cell to expand.