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

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? ...

AQA A-Level Biology Paper 1 Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. Moves along (mRNA to the next codon); Describe the structure of glycogen. /2 Ans- 1. Polysaccharide of α-glucose; OR polymer of α-glucose; 2. (Joined by) glycosidic bonds OR Branched structure; NH...

A+ Graded Exam For Aqa A Level Biology Paper 2 2023 3.6.4 Homeostasis - CORRECT ANSWERWhat is negative feedback? - CORRECT ANSWER-A response that returns a change in levels, back to normal. What is positive feedback? - CORRECT ANSWER-A response that amplifies a change from the normal level. Which factors influence blood glucose concentration? - CORRECT ANSWER-Eating food containing carbohydrates, glucose absorbed from intestine to blood. Exercising, more glucose is used in respirat...

PDF Link AS and A level biology year 1 and year 2 aqa all topics covered.

Practical handbook for A-level Biology Version 1.3 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. This is the Biology version of the Practical handbook. Sections J to P are particularly useful for students and could be printed as a student booklet by schools. The informat...

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...

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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 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 th...

A-level PSYCHOLOGY Paper 3 Issues and options in psychology Time allowed: 2 hours Materials For this paper you must have: • an AQA 16-page Answer Book. You may use a calculator. Instructions • Use black ink or black ball-point pen. • Write the information required on the front of your answer book. The Paper Reference is 7182/3. • In Section A, you should answer all questions. • In Section B, choose one topic. Answer all questions on the topic you choose. • In Section ...