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Infection and response
Organisation
Cell biology
Biological molecules
Homeostasis and response
Responding to change (a2 only)
Energy transfers (a2 only)
The control of gene expression (a-level only)
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
Britain & the wider world: 1745 -1901
Inter-war germany
World war one
2n revolution and dictatorship: russia, 1917-1953
World war two & the holocaust
1l the quest for political stability: germany, 1871-1991
The cold war
2j america: a nation divided, c1845-1877
Medieval period: 1066 -1509
The fight for female suffrage
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
Britain: 1509 -1745
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16/10/2022
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DIFFUSION → Solid → Liquid Diffusion → the movement of particles. from an area of high concertation to an of low concentration. aca The higher the concentration, the faster the rate of diffusion DIFFUSION Where does difpusion happen in the body? Lungs → blood Blood → → lungs Small intestine (alveoli) Diffusion occurs in the small intestine. It goes through the ville. It also occurs in gas exchange from the lungs to the bloodstrea and vice versa. Gas exchange in animals → jish gills DIFFUSION an I The movement of particles from area of high concentration to an area of low concentration. 2 Lungs - blood Blood - slings in and out of cells Small intestine. 3 leaves. roots Hypertonia → the solution is more concertate than the cell contents Isotonic a solution that is the same concentration as the cell contents Hypotonic - a solution is less concentrato than cell contents. Osmosis the dyppusion water molecule from a dilucte to a concentrated solution. through a partially permeable membrane. Partially permeable small mokieules, can pass through the membrane but larger ones chib
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