Classification key facts

Cell wall present (made of cellulose)

Multicellular Carry out photosynthesis- use light energy to convert simple inorganic molecules (e.g water and carbon dioxide) into complex compounds

Contain chloroplast Store carbohydrates as starch

Examples: Beans, Peas, Maize

Don't have a cell wall

Multicellular

Do not contain chlorophyll

Have a nervous system for co-ordination

Store carbohydrate as glycogen

Eat other organisms for energy

Examples: Humans (Mammals), Houseflies (Insects)

Have a cell wall (made of chitin)

Are both multicellular and unicellular

Multicellular fungi made up of mycelium- network of threat structures (hyphae)

Many fungi act as decomposers

Eat other organisms for energy- saprotrophic nutrition: secrete enzymes which digest food outside cells, then absorb digested product

Examples: Mucor (has hyphae structure e.g multicellular), Yeast (unicellular)

Cell wall found in some protocists

Are both multicellular and unicellular

Some cause disease (e.g Plasmodium causes malaria)

Gets energy through photosynthesis to survive

Examples: Amoeba (live in pond water and are more like animal cells), Chlorella (have chloroplast and are more like plant cells), Plasmodium (pathogenic and causes Malaria)

Don't have a cell wall

Are not multicellular or unicellular as aren't made from cells (steal from host cell)

Are parasites

Can only reproduce inside a living cell

Have core of genic material surrounded by a protein coat

Contain either DNA or RNA

Each virus causes a specific disease in the particular organism it is adapted to infect

Do not feed on anything as they are not alive

Examples: HIV virus (causes aids), Influenza virus (causes flu)

Some contain a cell wall (made of a complex chemical)

Unicellular

Have complex cell wall made up of proteins and polysaccharides

Don't have a nucleus (have DNA circles called plasmids instead of chromosome loop)

Some have flagelium (e.g tails) for movement

Feed off dead or other living organisisms

Examples: Lactobacillus bulgarius (invloved in production of yoghurt), Pneumococcus (causes Pneumonia)