OCR • Biology A

Includes notes on KIDNEY (NOT LIVER) and roles of nephron and what occurs at the nephron.

Includes notes on LIVER (NOT KIDNEY) and roles of liver

Includes notes on endo and ectotherms, temperature regulation, homeostasis, behavioural and physiological responses,

Includes notes on structures of xylem and phloem, structures of roots, stem and leaves, apoplast and symplast pathways, transpiration, factors affecting transpiration

Includes notes on the types of circulatory systems, structures of blood vessels , tissue fluid, the heart including the cardiac cycle, ECG traces, role of haemoglobin, oxygen dissociation curve.

Includes notes on features of efficient exchange surfaces, structures and functions of components in mammalian gas exchange system ️Not all topics may be included

Only includes one page on variation

Includes notes on biodiversity, genetic biodiversity and factors affecting biodiversity (environmental) ️ DOES NOT INCLUDE NOTES FOR ALL TOPICS

includes notes on antibodies, vaccinations, modes of transmission, disease and chemical defences in plants

includes notes on stem cells, differentiated and specialised cells and tissues

Includes notes on cell cycle, mitosis and meiosis, cell diversity and cell organisation

Includes notes on membranes

Includes notes on enzymes

Includes notes on microscope and cell structures

The document provides a summary for carbohydrates specifically, which is part of module 2 of A-level OCR A Biology. It also shows some of the tests for biological molecules. (Doesn't provide any details about proteins and lipids)

Includes mind maps for biological molecules

These notes include mind maps of biological molecules and some notes on enzymes, specialised cells, stem cells, eukaryotic, prokaryotic cells ️ NOT ALL TOPICS INCLUDED

These notes include notes from modules 2, 3, 4 and 5 from the new 2025 spec. ️ NOT ALL NOTES FROM EACH TOPIC ARE INCLUDED

detailed summary note of chapter 3 biological molecules for OCR A A-level Biology

Comprehensive handwritten summary notes covering Module 2: Foundations in Biology for OCR A A-Level Biology. These notes were created and used for revision in the 2024 exam series, in which I achieved a high A grade, close to an A*. The notes are designed to provide a clear and concise overview of the entire module, including: * Cell structure and ultrastructure * Biological molecules * Nucleotides and nucleic acids * Enzymes * Cell division, cell diversity, and cellular organisation ...