Hannahmarkham

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 ...

This document provides a full and in-depth specification of the kidney for A level. It presents clear learning objectives with detailed explanations to ensure all content is covered. Perfect as a revision aid. Creating and using this resource allowed me to achieve an A in A level Biology. The main points this resource covers are an overview of the nephron and its components, the production of urine, including the process of ultrafiltration and selective reabsorption. It also covers osmorece...