This resource guides a-level biologists through the nature of active transport with a few example from within the specification. Stretch, challenge and lateral thinking questions are embedded throughout. This is a resource been made to be picked up and used by any teacher.

This resources introduces a-level biologists to the concept of biological molecules, touching upon how these molecules are synthesised and broken down via condensation and hydrolysis. This is a resource been made to be picked up and used by any teacher. AQA Biology

This resource guides a-level biologists through diffusion across a cell-surface membrane. The idea of facilitated diffusion is also explored as well as some of the transmembrane proteins seen throughout different parts of the specification (e.g. Ligand, voltage). Stretch, challenge and lateral thinking questions are embedded throughout. This is a resource been made to be picked up and used by any teacher.

This resource guides a-level biologists through the process of phagocytosis. Stretch, challenge and lateral thinking questions are embedded throughout. This is a resource been made to be picked up and used by any teacher.

This resource guides a-level biologists through the cell cycle and cancer. Students briefly discuss Oncogenes and Tumour Supressor Genes and cancer including the potential treatments of cancer. Stretch, challenge and lateral thinking questions are embedded throughout. This is a resource been made to be picked up and used by any teacher.

This excellent resource covers SI units of measurements, magnification, resolution, and calculating magnification from images. Questions have been taken from a range of papers and questions reworded. Pupils are to work through the booklet from the start for a thorough understanding of this topic. the attached power point contains the answers. All answers are illustrated and explained clearly.

This resource guides a-level biologists carefully through the intricate process of the light-dependent reaction of photosynthesis. The chemiosmotic theory of how ATP is synthesised in the thylakoid is explored by carefully explaining the importance of photolysis in this reaction. Understanding how this ends up with the products of oxygen, NADPH and ATP prepares students for the next stage of photosynthesis, the light-independent reaction. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the mechanism of translocation and how sucrose is moved under mass transport from source to sink. The mass flow theory is broken down into three digestible and understandable steps before exploring the evidence for and against. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the movement of water through a plant via the xylem in a process called transpiration. The role of the stomata is explored before diving into the movement of water through the xylem inlcuding the cohesion-tension theory. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the structure of the main blood vessels within the circulatory system before looking at how this is related to their individual functions. The formation and return of tissue fluid is also explored. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the cardiac cycle. The processes of systole and diastole are discussed before exploring the significance of valves within the cardiac cycle. To conclude this is linked to the cardiac output formula. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the appearance of the heart and its associated vessels. This lesson contains key understanding needed for the next lesson 7.5 The Cardiac Cycle. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through why large organisms have transport systems before exploring the features of transport systems and looking at the double circulatory system of mammals. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the role of haemoglobin in loading and unloading oxygen and how this is represented on an oxygen dissociation curve. How changes in the environment around haemoglobin can effect its shape and affinity are then discussed and explained before looking at different organisms dissociation curves. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the structure of haemoglobin and its role in the loading and unloading of oxygen. The role of haemoglobin is them explored by discussing its ability to change its affinity under different conditions. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the structure of the ileum and how it is adapted for the absorption of the products of digestion. The absorption of glucose from topic 4 is recapped before exploring how the body absorbs triglycerides. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the major parts of the digestive system before exploring physical and chemical digestion in more detail. Chemical digestion is then looked into in more depth to discuss the role of enzymes in the digestion of three different macromolecules. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefully selected visuals.

This resource guides a-level biologists through the mechanism of breathing including an in depth discussion about the processes of inspiration and expiration. The calculation of pulmonary ventilation is also discussed. Stretch, challenge and lateral thinking questions are embedded throughout alongside carefuly selected visuals

This resource guides a-level biologists through how terrestrial organisms such as plants and insects have to balance gas exchange with water loss. Insects and plants adaptations to this problem are explored and discussed in more detail. Stretch, challenge and lateral thinking questions are embedded throughout.

This resource guides a-level biologists through gas exchange of single-celled organisms with a focus on how terrestrial organisms such as insects also achieve this. Adaptations of an insects tracheal system are explored. Stretch, challenge and lateral thinking questions are embedded throughout.