Plants: Multicellular, Have chloroplasts, Cell walls made of cellulose, Store carbohydrates as sucrose or starch, e.g. cereals like maize, e.g. herbaceous legumes like peas and beans, Move in place i.e. can bend, Animals: Made of lots of cells, Nervous coordination, Move around over long distances, Carbohydrates stored as glycogen, e.g. mammals like humans, e.g. insects like houseflies and mosquitoes, Fungi: Some are single-celled, Some have body called mycelium - made of hyphae (which contain lots of nuclei), Cell walls made of chitin, Feed by saprotrophic nutrition - secrete extracellular enzymes into area outside body to dissolve food and absorb nutrients, Store carbohydrates as glycogen, e.g. yeast (singe-celled), e.g. mucor (multi-cellular), Protocists: Single celled, Only viewed under microscope, Some have chloroplasts, e.g. Chlorella, e.g. Amobea, Bacteria: Single-celled, Microscopic, No nucleus, Circular chromosome of DNA, Some can photosynthesise, Most feed off other organisms, e.g. Lactobacillus bulgaricus - makes milk go sour and turn into yoghurt, e.g. Pneumococcus, Viruses: Particles (not cells), Reproduce inside living cells, Infects all types of living organism, Come in lots of different shapes and sizes, No cellular structure, Have protein coat and some genetic material in the form of DNA or RNA, e.g. Tobacco mosaic virus - makes leaves of tobacco plants discoloured,

iGCSE Bio - Organism Features

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