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Infection and response
Energy transfers (a2 only)
Responding to change (a2 only)
Cell biology
Organisms respond to changes in their internal and external environments (a-level only)
Organisation
Biological molecules
Homeostasis and response
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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The cold war
2n revolution and dictatorship: russia, 1917-1953
1l the quest for political stability: germany, 1871-1991
1c the tudors: england, 1485-1603
1f industrialisation and the people: britain, c1783-1885
World war two & the holocaust
World war one
2b the wars of the roses, 1450-1499
2j america: a nation divided, c1845-1877
Britain & the wider world: 1745 -1901
Inter-war germany
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
Medieval period: 1066 -1509
Britain: 1509 -1745
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04/02/2023
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Structure of a glower filament Lovary petal ovules • Stigma 10 anther •Stigma: recieves pollen style - Style: transports pollen to the ・sepal Carples (the female parts of a flower) Sely pollination: Pollen is transferred from the stamen to sligma of the same. plant ovary -Ovary: contains oveles which develop seeds Stamen. (the male parts of a flower) -Anther: produces pollen - Filament: holds up Other parts of a flower Sepal: encloses and protects the plant Petals: attract pollinators with the anthes Cross pollination: Pollen is transferred from the Stower to stigna y diferent placket Fertilisation: The rudeus of the pollen the grain and ovule join. Germination: Spronting and growth their bright colours Ovales: forms seeds forms Wind pollinated: -Usually a dull colour with light pollen -Anther and sligua outside the flower Insed pollivaled i - Brightly coloured will sticky pollen. -Anther and sligma inside the flower.
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