Aqa a level biology (year 1 and year 2) Study guides, Revision notes & Summaries

AQA JUNE 2022 BIOLOGY AS LEVEL 7401 PAPER 1 MARKSHEME MS. MARK SCHEME – AS BIOLOGY – 7401/1 – JUNE 2022 2 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examination. The standardisation process ensures that the mark scheme covers ...

AQA A LEVEL YEAR 1 AND AS BIOLOGY DEFINITIONS EXAM | QUESTIONS & 100% CORRECT ANSWERS (VERIFIED) | LATEST UPDATE | GRADEA+ antigen Correct Answer: a molecule that triggers an immune response antibiotic Correct Answer: a substance produced by living organisms that can destroy the growth of organisms active transport Correct Answer: movement of a substance from a region of low concentration to a region of high concentration which requires metabolic energy allele Correct Answer: ...

AQA BIOLOGY ESSAY TITLES VERSION 2 Biology essay titles Version 2 This document contains the essay titles and mark schemes used in AQA A-level Biology examinations since 2007. The specifications these exam questions came from are no longer in use, but the marking method has largely remained unchanged. Further guidance on the marking method used with the essay can be found in Paper 3 Essay marking guidance. Year Questio nTitle 7402/3 2017 7.1 The impo...

Contents Section Page A Introduction 4 Information about practical work for teachers B Practical work in reformed A-level Biology, Chemistry and Physics 7 C Practical skills assessment in question papers 12 D Guidelines for supporting students in practical work 18 E Use of lab books 20 F Cross-board statement on CPAC 22 G Evidence for the endorsement 31 H Questions from teachers following the first year of the practical endorsement 33 I Cross-board apparatus and techniques and AQ...

AQA GCSE Separate Science Biology – Paper 2 Higher Tier Predicted Paper 2023 with marking schemes Name …………………………………………………………………… Date ………………… 1 hour 45 minutes allowed. You may use a calculator. Grade boundaries These are VERY rough guesses! Getting a 7 on this paper does not guarantee you the same mark in the exam. • 9 70% • 8 60% • 7 50% • 6 45% • 5 35% • 4 30% • 3 25% ...

AQA A Level Biology - Energy and Ecosystems 2024 Where do organic compounds come from in an ecosystem? in photosynthesis using atmospheric or aquatic CO2 Plants synthesise organic compounds What are most of the sugars produced in photosynthesis used for ? substrates) Respiration (as respiratory What are the two uses of organic compounds produced in photosynthesis ? Substrates Building other biological molecules e.g. cellulose What is biomass ? The mass of living materia...

AQA Education (AQA) is a registered charity (number ) and a company limited by guarantee registered in England and Wales (number ). Our registered address is AQA, Devas Street, Manchester M15 6EX. AQA BIOLOGY ESSAY TITLES VERSION 2 Biology essay titles Version 2 This document contains the essay titles and mark schemes used in AQA A-level Biology examinations since 2007. The specifications these exam questions came from are no longer in use, but the marking method has largely remained unchan...

AQA A Level Biology : Year 2- Nervous Coordination Graded A What is the value of the resting potential of a neurone? Why is the resting potential of a neurone negative? -70mV There are more positive ions outside the cell than inside How is the resting potential maintained? actively transports 3 Na+ out for ever 2 K+ into the neurone (ATP Hydrolysed) Sodium-potassium pump Membrane more permeable to K+ and less permeable to Na+ What happens if the sodium ion channels rema...

AQA A Level Biology : Year 1 - The Heart Graded A+ Describe the passage of blood through the right side of the heart Cava Right atrium Right AV valve Right ventricle Semi lunar valve Pulmonary Artery Describe the passage of blood through the left side of the heart Left atrium Left AV valve Left ventricle Semi lunar valve Aorta (superior and inferior) Vena Pulmonary vein How does the thickness of the left ventricle walls compare to the right ventricle walls? ...