Cell Structure and Metabolism
There is no common cell structure among the various species that make up the phylum Chrysophyta. While some amoeboid cells lack cell walls, others have cell walls that are primarily made of cellulose and contain significant amounts of silica. There may be one or two flagella present; if there are two, they might or might not be identical. While chrysophytes frequently reproduce through cell division, diatoms can reproduce sexually. Chrysophyta members typically engage in photosynthetic growth, although some-particularly the golden algae-become heterotrophic in conditions of little light or abundant dissolved food.
Chrysophytes
The practice of classifying organisms based on shared characteristics is known as biological classification. The two kingdoms of classification were proposed by Linnaeus. He divided organisms into two kingdoms: the animal world (Animalia) and the plant kingdom (Plantae). The two kingdom classification had some drawbacks, such as the inability to distinguish between eukaryotes and prokaryotes, unicellular and multicellular species, and photosynthetic and non-photosynthetic organisms. As a result, this field underwent further development, with R.H. Whittaker’s Five Kingdom classification serving as the primary example.