It is all about the structure of nephron and how it reabsorbs the useful molecule and how it gets rid of nitrogenous waste.

My document is a summary of the A2 Biology topic of Communication and Homeostasis. Within this topic, we will look at Homeostasis, positive feedback, Negative Feedback, Regulation of Heart rate, Endotherms and Ectotherms.

It's an assignment on cellular respiration. It discusses the definition of cellular respiration, why it’s important for the body, the process and making of ATP, and much more. Very detailed, includes references. A grade

A Level Notes on the Kidney for OCR I PAD notes in pdf format All to the spec

Notes on photosynthesis suitable for all A Level Biology but specific to OCR. Explains in detail the light-dependent and light-independent stages of photosynthesis, including step-by-step explanations of photophosphorylation and the Calvin cycle.

These notes are for the OCR Biology specification from 2016 but can be used for other specifications as the content is very similar. Each specification point is followed by a series of relevant but detailed notes. Every topic is broken down so that anyone can read and understand the notes. The notes also include compulsory practicals and expected results. Diagrams are from OCR textbooks.

Revision notes for 4.1.1Communicable Diseases. Each specification point is quoted and then written with relevant information to ensure students can be confident in the topic. The information is taken from textbooks as well as mark schemes to help answer exam questions accurately in the form of easy to understand bullet points. These notes are much more digestible than regular textbooks as it eliminates chunky paragraphs to neat tables and bullet points.

This is an in depth summary of the specification points regarding the excretory system. I achieved an A grade using these notes in 2017. It defines excretion, explores the importance of removing wastes from the body such as CO2 and urea, histology and overview of the kidney, its functions, its role in detoxification and formation of urea. Great for a revision aid.

This is an in depth summary of the specification points regarding the respiratory system. This covers the main content necessary for A level biology. Creating and using this aid, I achieved an A grade. It covers reasons for organisms need for respiration, ATP, NAD and Coenzyme A and the mitochondria. It also covers key processes such as, glycolysis, phosphorylation, oxidation, the link reaction, the Krebs cycle, oxidative phosphorylation, chemiosmosis (and theories surrounding it), electron ...