EASY REVISION AQA ALevel Biology 354 Nutrient Cycles

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This episode focuses your revision on topic 3.5.4 (Nutrient Cycles) of the AQA A-Level Biology specification. • 00:00 Introduction • 00:10 specification overview • 01:24 saprobionts the role of microorganisms in decomposition • 02:32 the nitrogen cycle • 04:15 the phosphorus cycle • 05:07 micorrhizae • 06:15 fertilisers: natural and artificial • 07:02 uses of different mineral ions • 07:51 leaching • 08:31 eutrophication • 09:31 specification round-up

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