Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.13.1 - Amino acids. Specification Point 3.3.13.2 - Proteins. Specification Point 3.3.13.3 - Enzymes. Complete set of Chapter 8 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.13.4 - DNA. Specification Point 3.3.13.5 - Action of anticancer drugs. Complete set of Chapter 8 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.15 - Nuclear magnetic resonance spectroscopy. Complete set of Chapter 8 Lectures are available.

Complete set of concise, modern presentations for Edexcel IGCSE Biology (4BI0) Chapter 4 - Coordination and Control. Contains colour coded specification points with handmade vector graphics. Nine presentations included: 27 - Excretion 28 - The Kidneys 29 - Coordination 30 - Coordination in Plants 31 - Coordination in Humans 32 - Reflexes and the Eye 33 - Controlling Body Temperature 34 - Hormones 35 - More Hormones

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.1 -Describe the level of organisation in organisms: organelles, cells, tissues, organs and organ systems. Specification Point 2.2/2.3 - Describe the structures and functions of the cell’s organelles, including the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplast, ribosome and vacuole. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5 - Understand how abiotic and biotic factors affect the population size and distribution of organism. Complete set of Chapter 6 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.65 - Describe the structure of the heart and how it functions. Specification Point 2.66 - Explain how the heart rate changes during exercise and under the influence of adrenaline. Specification Point 2.67 -Understand how factors may increase the risk of developing coronary heart disease. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.48 - Explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries. Specification Point 2.49 - Understand the biological consequences of smoking in relation to the lungs and the circulatory system, including coronary heart disease. Specification Point 2.50 - Practical: Investigate breathing in humans, including the release of carbon dioxide and the effect of exercise. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.21 - Describe the structure of the leaf and explain how it is adapted for photosynthesis. Specification Point 2.22 - Understand that plants require mineral ions for growth, and that magnesium ions are needed for chlorophyll and nitrate ions are needed for amino acids. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.80 - Understand how organisms are able to respond to changes in their environment. Specification Point 2.81 - Understand that homeostasis is the maintenance of a constant internal environment, and that body water content and body temperature are both examples of homeostasis. Specification Point 2.82 - Understand that a coordinated response requires a stimulus, a receptor and an effector. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.83 - Understand that plants respond to stimuli. Specification Point 2.84 - Describe the geotropic and phototropic responses of roots and stems. Specification Point 2.85 - Understand the role of auxin in the phototropic response of stems. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.38 - Explain Darwin’s theory of evolution by natural selection. Specification Point 3.39 - Understand how resistance to antibiotics can increase in bacterial populations, and appreciate how such an increase can lead to infections being difficult to control. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.19 - Understand how genes exist in alternative forms called alleles which give rise to differences in inherited characteristics. Specification Point 3.20 - Understand the meaning of the terms: dominant, recessive, homozygous, heterozygous, phenotype, and genotype. Specification Point 3.21B - Understand the meaning of the term codominance. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 5.1 - Describe how glasshouses and polythene tunnels can be used to increase the yield of certain crops. Specification Point 5.2 - Understand the effects on crop yield of increased carbon dioxide and increased temperature in glasshouses. Specification Point 5.3 - Understand how the use of fertiliser can increase crop yield. Specification Point 5.4 - Understand the reasons for pest control and the advantages and disadvantages of using pesticides and biological control with crop plants. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 1.14 - Know what is meant by the terms atom and molecule. Specification Point 1.15 - Know the structure of an atom in terms of the positions, relative masses and relative charges of subatomic particles. Specification Point 1.16 - Know what is meant by the terms atomic number, mass number, isotopes and relative atomic mass (Ar). Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.2.1.2 - Structure of prokaryotic cells and of viruses. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.5.4 - Nutrient cycles. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.6.1.2 - Receptors. Complete set of Chapter 6 Lectures are available.

Complete set of concise, modern presentations for AQA A Level Biology (7401 and 7402) Chapter 5 - Energy Transfer. Contains colour coded specification points. Six presentations included: 36 - Photosynthesis and the Light Dependent Reaction 37 - Photosynthesis and the Light Independent Reaction 38 - The Rate of Photosynthesis 39 - Respiration 40 - Energy and Ecosystems 41 - Nutrient Cycles

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.7.2 - Populations. Specification Point 3.7.3 - Evolution may lead to speciation. Complete set of Chapter 7 Lectures are available.