Questions by topic for A-level Biology  - Genes, Genetics and Genetics Engineering, for OCR A, AQA and Eduqas

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Brief guide to understanding the hard bits of the immune system A-level Biology Specification. Lots of questions and markschemes on the immune system.

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Calculating Simpsons Biodiversity index and some questions and markschemes on Biodiversity and Conservation. A Simpsons biodiversity calculation is almost certain to be on the exam paper. It combines maths with ecology and gives an opportunity for the examiner to ask suggest questions....

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Which maths skills you need to practise for the new specification A-level Biology - excellent resources from OCR - also applies to AQA and Eduqas, lots of great practice questions

The quantity of maths in the 2017 specification is a challenge to many students - so I put together a summary of all of the OCR A new spec questions with some element of data analysis.

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A level Biology Questions by topic - Kidney Questions with markschemes, useful for OCR, AQA, Eduqas

Here are lots of good questions on the kidney. I expect the kidney to appear frequently in the new style papers as they are very synoptic, give opportunities to require calculation and get students to analyse and explain data.

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Prompting some festive recapping ? - Looking back at first year A-level Biology topics

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From an Old OCR Unifying concepts paper. ....

Don't panic, the question is not about DNA vaccines or plasmids. 

The question is about differences between protein and DNA structure,  protein synthesis, post translational modification of protein,  clonal selection, mutation of pathogens. All of which are on the specification.

Enzymes have an active site - Substrates don't.

The substrate is a complementary shape to the active site NOT the "same shape"

Enzymes reduce the activation energy for a reaction to occur

Anabolism is making, Catabolism is breaking

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How to understand the Cardiac Cycle

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