AQA · Biology · Unit 4 BIOL4 - Populations and environment

Here are the best resources to pass Unit 4 BIOL4 - Populations and environment at AQA. Find Unit 4 BIOL4 - Populations and environment study guides, notes, assignments, and much more. We also have lots of notes, study guides, and study notes available for Biology at AQA.

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New AQA Biology 3.7.4 Populations In Ecosystems Past Exam Questions with Model Answers

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Excellent past paper questions and model answers on Populations and Ecosystems for the new, current AQA Biology specification. These model answers include key definitions and relevant points that is required to understand the biology concepts in greater depth. Notes written using AQA Biology Textbooks (New Spec), past questions, online and more. Also, a summary of key points is included to help you secure the A/A* grade at A-Level.

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  • by PARTIALPROJECTILE27 • 
  • uploaded  03-06-2020
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Proteins and food tests notes

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Full AS mechanism checklist AQA biology. PERFECT FOR ESSAY IN PAPER 3! APPROVED AND CHECKED BY MY TUTOR- AN AQA EXAMINER. content includes; Hydrolysis reactions, Condensation reactions, Complementary base pairing, Induced fit hypothesis and reaction kinetics, Competitive inhibition, Non competitive inhibition, Test for a protein, test for a sugar (reducing and non reducing), the test for starch, the test for a lipid and the effect of temperature, substrate concentration, enzyme concentration and...

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  • by maiziehall • 
  • uploaded  26-05-2020
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Fluid Mosaic model and membrane fluidity experiment

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Full AS mechanism checklist AQA biology. PERFECT FOR ESSAY IN PAPER 3! APPROVED AND CHECKED BY MY TUTOR- AN AQA EXAMINER. Content includes; Fluid mosaic model, The effect of a named variable on membrane fluidity, Meselson and stalls experiment, DNA replication and complementary base pairing, Destabilising selection/ disruptive, Classification.

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  • by maiziehall • 
  • uploaded  26-05-2020
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Immunity, aseptic techniques and investigating selection

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Full AS mechanism checklist AQA biology. PERFECT FOR ESSAY IN PAPER 3! APPROVED AND CHECKED BY MY TUTOR- AN AQA EXAMINER. Content covered includes; Phagocytosis and antigen presentation, clonal selection, Clonal proliferation/expansion, ELISA test, Aseptic technique, Investigating selection, Vaccination.

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  • by maiziehall • 
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Mass transport and cooperativity

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Full AS Biology Mechanisms (AQA) PERFECT FOR PAPER 3 ESSAYS!! Content includes; cooperativity, Bohr shift (Haemoglobin), Formation of tissue fluid, The cardiac cycle, Transpiration stream, Setting up a Potometer, Translocation. CHECKED AND APPROVED BY MY TUTOR - AN AQA EXAMINER.

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  •  • 4 pages • 
  • by maiziehall • 
  • uploaded  26-05-2020
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Selection, root tip squash practical, evolution and mitosis etc

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Complete ASAQA biology mechanisms for gas exchange in mammels, Root tip squash practical, Stabilising selection, Directional selection, Evolution, Crossing over of chromatids, Random assortment/segregation, Mutation, Mitosis, Translation, Transcription. PERFECT FOR ESSAYS IN PAPER 3 ! Approved and checked by my biology tutor- an AQA examiner.

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  • by maiziehall • 
  • uploaded  26-05-2020
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