Revision notes for the Plant Responses Topic 5.1.5 for A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and required practicals for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 7 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Plant responses to the environment • Controlling plant growth • Tropisms • Experimental evidence for plant hormones • Investigating plant hormones and tropisms • Roles of plant hormones • Commercial use of plant hormones • Required Practical 11: Investigation into the Measurement of Plant or Animal Responses Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Ecosystems Topic 6.3.1 for A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and practical skills for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 9 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Ecosystems • Transfer of biomass and biomass calculations • Manipulating the transfer of biomass • The nitrogen cycle • The carbon cycle • Succession • Studying ecosystems Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Communication and Homeostasis Topic 5.1.1 for A-Level OCR A Biology. These notes contain all the specification knowledge and examples required for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 4 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • The need for communication systems • The principles of homeostasis • Control of body temperature – including: endotherms (e.g. mammals) and ectotherms. Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Animal Responses Topic 5.1.5 for A-Level OCR A Biology. These notes contain all the specification knowledge and examples required for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 10 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • The mammalian nervous system • The brain • Reflex actions • Coordinating responses • Controlling heart rate • Muscle structure • The action of neuromuscular junctions • The sliding filament hypothesis Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Excretion as an Example of Homeostatic Control Topic 5.1.2 for A-Level OCR A Biology. These notes contain all the specification knowledge and examples required for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 9 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Excretion • Structure and function of the liver – including: glycogen storage, detoxification and the formation of urea. • Structure and function of the kidney – including ultrafiltration and selective reabsorption. • Osmoregulation • Kidney failure • Urine analysis – including pregnancy tests. Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Cell Structure Topic 2.1.1 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and required practicals for this topic. They allow a strong understanding of content to achieve a high grade. The word documents contain a total of 6 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Microscopy • Cell Structure – including: organelles, production and secretion of proteins, the cytoskeleton. • Animal and Plant cells • Prokaryotic and Eukaryotic cells • Required Practical 1: Microscopy Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Cell Division, Cell Diversity and Cellular Organisation Topic 2.1.6 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge and examples required for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 8 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • The cell cycle • Mitosis • Meiosis • Stem cells and differentiation – including: specialised cells • Tissues, organs and systems Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Biological Membranes Topic 2.1.5 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and required practicals for this topic. They allow a strong understanding of content to achieve a high grade. The word documents contain a total of 8 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Roles of membranes • Fluid mosaic model and membrane structure • Factors affecting membranes – temperatures and solvents • Transport across cell membranes – diffusion, facilitated diffusion, osmosis, active transport, exocytosis, endocytosis • Required Practical 8: Transport in and out of cells Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Biodiversity Topic 4.2.1 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and required practicals for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 7 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Biodiversity • Calculating biodiversity – including Simpson’s Index of Diversity, proportion of polymorphic loci, population size. • Factors affecting biodiversity • Reasons for maintaining biodiversity • In-situ and ex-situ conservation • Required Practical 3: Sampling techniques Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Enzymes Topic 2.1.4 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and required practicals for this topic. They allow a strong understanding of content to achieve a high grade. The word documents contain a total of 6 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Action of enzymes • Factors affecting enzymes • Inhibition • Required Practical 4: Rates of enzyme controlled reactions Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Exchange Surfaces Topic 3.1.1 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and practical skills for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 5 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • The need for exchange surfaces • Gaseous exchange system in mammals • Ventilation in mammals – including using a spirometer • Gaseous exchange and ventilation in fish • Gaseous exchange and ventilation in insects Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Transport in Plants Topic 3.1.3 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required, examples and required practicals for this topic. They allow a strong understanding of content to achieve a high grade. The word documents contain a total of 10 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • The need for transport systems in plants • The vascular bundle • Xylem • Phloem • Movement of water • The transpiration stream and factors affecting transpiration • Adaptations of xerophytic plants and hydrophytes • Translocation and active loading • Required Practical 5: Potometer Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey

Revision notes for the Transport in Animals Topic 3.1.2 for AS-Level and Year 1 A-Level OCR A Biology. These notes contain all the specification knowledge required and examples for this topic. They allow a strong understanding of content to achieve a high grade. The word document contains 10 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Circulatory systems • Blood vessels • Exchange of the capillaries • The heart – including structure, the cardiac cycle and coordination of the cardiac cycle, electrocardiograms. • Transport of oxygen • Transport of carbon dioxide Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey