Kingdoms - Fungi, Prokaryotes, Protoctista
Biology: Cambridge International GCSE Supplement, topic 1.3.2
Kingdoms
At the broadest level, organisms can be classified into 5 kingdoms; animals, plants, fungi, prokaryotes and protoctista.

Fungi
- Fungi cells have cell walls (that do not contain cellulose) and no chloroplasts.
- Fungi are decomposers (get their food from decaying matter), and can be multicellular or unicellular.
- Mushrooms and moulds are examples.

Prokaryotes
- Prokaryotes are unicellular and have no nucleus (membrane-bound structure that contains the cell's genetic materials).
- Bacteria are prokaryotes.

Protoctista
- Protoctista are unicellular, and their cells have nuclei (membrane-bound structures that contain the cell's genetic materials).
- Amoeba are an example.
Test yourself on Kingdoms - Fungi, Prokaryotes, Protoctista
Which option is true with reference to prokaryotes and protoctista?