Edexcel snab biology as Samenvattingen, Aantekeningen en Examens

These are A* quality notes that I wrote during my A Levels to help me revise for A Level Edexcel A SNAB Biology. Notes and resources for this exam board are very limited so I hope these notes help students that are struggling to find resources online. I wrote these using my class notes, the Edexcel SNAB textbook, mark schemes and other online resources such as savemyexams. At the end of the document, I have written some common exam questions that I came across during my revision along with their...

These are A* quality notes that I wrote during my A Levels to help me revise for A Level Edexcel A SNAB Biology. Notes and resources for this exam board are very limited so I hope these notes help students that are struggling to find resources online. I wrote these using my class notes, the Edexcel SNAB textbook, mark schemes and other online resources such as savemyexams. Throughout the document, I have written some common exam questions that I came across during my revision along with their ma...

They are too large for diffusion to transport substances quickly enough (small SA:V) - correct answer Why cant complex multi cellular organisms rely on diffusion to transport substances around the body? Blood is not contained in blood vessels but circulates in large spaces - correct answer Open circulatory system A simple heart pumps blood out into the cavities surrounding the organs. The heart muscle relaxes so the pressure decreases and blood is drawn from the cavity back into the heart ...

These notes are a summary of topic 1: Health, Lifestyle & Risks from the Edexcel A SNAB biology textbook. Covers every specification point on this topic. Concise notes. Good for revision.

These are A* quality notes that I wrote during my A Levels to help me revise for A Level Edexcel A SNAB Biology. Notes and resources for this exam board are very limited so I hope these notes help students that are struggling to find resources online. I wrote these using my class notes, the Edexcel SNAB textbook, mark schemes and other online resources such as savemyexams. At the end of the document, I have written some common exam questions that I came across during my revision along with their...

Description of nucleus - correct answer large organelle surrounded by a nuclear envelope which contains pores. the nucleus contains chromatin (which is made from DNA and proteins and a structure called the nucleolus. Function of nucleus - correct answer Controls the cells activities by controlling the transcription of DNA. DNA contains instructions to make proteins. Pores allow substances to move between the nucleus and cytoplasm. The nucleolus makes ribosomes Description of lysosome - cor...

Biodiversity - correct answer the variety of living organisms in an area. includes species diversity and genetic diversity Species diversity - correct answer the number of different species and the abundance of each species in an area Genetic diversity - correct answer the variation of alleles in the gene pool of a species Endemism - correct answer when a species is unique to a single place How is species richness counted - correct answer counting the number of species in a known are...

has all 4 as topics got students an A* in their exams to help get all the key points

I am currently an A level student and completed the AS exams last year. I know how difficult it is to revise from the textbook so I have made concise notes on the first 4 sub topics of topic 1, including relevant diagrams from the textbook. I will make more if I gain interest! Good luck :)