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Summary Variety of living organisms
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This is a summary of the syllabus section ‘variety of living organisms’ in the igcse edexcel text book.
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Eukaryotic kingdomsPants
ii
multicellular
multicellular No photosynthesis
no chloroplasts
Cells
containchloroplasts no photosynthesis bodyorganised into
a
areable tocarryout photosynthesis no cell walls
IT
havecellulose cellwalls a mycelium
nervouscoordination
mmmm.sn madefromthread like
oneplace toanother structurescalledhyphae
Examples storecarbohydrates as e
glycogen
nun Examples someare singlecelled
herbaceous
legumepeasorbean mammals humans gg.nn.y
cellshave walls made
rotoctists feed extracellular
Microscopic by of digestive
secretion
Single celled ontofoodmaterial enzymes
Somehavefeatures and absorption of the
like an animal cell amoeba organic products
some have features like a saprotrophicNutrition
Plant chlorella storecarbohydrate as
have chloroplasts may
glycogen
Pathogenicexample plasmodium
responsible forcausingmalaria
Examples
mucor
yeastsinglecelled
Prokaryotic organisms
Bacteria
microscopic
Examples
single celled
Cell wall Lactobacillus bulgaricus
cell membrane trod shaped bacterium used in
production of
cytoplasm
plasmids Pneumococcus yoghurt
No nucleus spherical bacterium
circular chromosome of DNA acts as the pathogen causing
some carry out photosynthesis pneumonia
mostfeed off otherliving ordeadorganisms
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