Traditionally, all living things have been grouped into kingdoms. For many years, things for either grouped as plants or animals. As more and more living things are discovered and studied closely, the number of kingdoms has gone from 2 to 5.
So lets look at the five kingdoms.
- eukaryotes
- multicellular
- have heterotrophic nutrition
- have fertilised eggs that develop into a ball of cells called blastula
- are usually able to move around
- eukaryotes
- multicellular
- have a cell wall made of cellulose
- provide multicellular embryos from fertilised eggs
- heterotroph nutrition
- eukaryotes
- cell wall made of chitin
- have a mycelium, which consists of Hyphae
- have a cytoplasm that is multinucleate
- are mostly free living and saprophytic
Kingdom Prokaryote
- have no nucleus
- respire using mesosomes
- have a loop of naked DNA
- no membrane bound organelles
- have smaller ribosomes compared to other kingdoms
- have cells that are smaller than eukaryotes
- may be free living or parasitic
- some cause disease
Kingdom Protoctista
- are eukaryotes
- are mostly singled cells
- show a variety of forms
- show animal features
- show plant like features
- are mostly free living
- some have autotrophic nutrition
- some have heterotrophic nutrition
sahiljhamb 