5/6 Kingdoms of Life!
The five-kingdom system of
classification for living
organisms, including the
prokaryotic Monera and the
eukaryotic Protista, Fungi,
Plantae and Animalia is
complicated by the discovery
of archaebacteria.
Living things have certain life processes in common. There are seven
things that they need to do to count as being alive. The phrase MRS
GREN is a way to remember them:
M Movement
All living things move, even plants
R Respiration
Getting energy from food
S Sensitivity
G Growth
Detecting changes in the surroundings
All living things grow
R Reproduction
Making more living things of the same type
E Excretion
Getting rid of waste
N Nutrition
Taking in and using food
3 Domains of Life

Archaea - These microbes are Prokaryotes, meaning that they
have no cell nucleus or any other membrane-bound organelles in
their cells, but are different to Bacteria

Bacteria – are also Prokaryotes were among the first life forms to
appear on Earth, and are present in most of its habitats.

Eukaryotes - is any organism whose cells contain a nucleus and
other organelles enclosed within membranes.
5 Kingdoms of Life

Living organisms are divided into five kingdoms: Prokaryotae,
Protista, Fungi, Plantae, Animalia

Characteristics of living things - Living things are made of cells,
obtain and use energy, grow and develop, reproduce, respond to
their environment, adapt to their environment.

Prokaryotae (Monera) - Unicellular and Microscopic. Nonmembrane bound (no nuclear membrane, no ER, no mitochondria).
Cell wall made of murein. Examples: Bacteria, Cyanobacteria.
5 Kingdoms of Life

Protista - Unicellular (mainly) Many live in aquatic environments.
This is usually the kingdom including organisms which aren't
animals, plants or fungi that don’t form tissues. Examples: Algae,
slime molds and the malaria causing Plasmodium.

Fungi - Multicellular, Cell wall made of chitin. The members of this
kingdom don't possess photosynthetic pigments and are therefore
heterotrophic. Examples: Mushroom, Mold, Puffball
5 Kingdoms of Life + Viruses

Plantae
- Eukaryotic, Multicellular, Cell wall made of cellulose.
Members of the plantae group contain photosynthetic pigment and
gain their energy through it and are therefore autotrophic.

Animalia - Eukaryotic, Multicellular, Heterotrophic. The members
of this kingdom can be split into two groups, vertebrates and
invertebrates.

Viruses (not living) - Acellular structures composed of nucleic acid
enclosed by a protein coat. Not classified as living.
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