Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.8 - Understand how the structure of the male and female reproductive systems are adapted for their functions. Specification Point 3.9 - Understand the roles of oestrogen and progesterone in the menstrual cycle. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.28 - Understand how division of a diploid cell by mitosis produces two cells that contain identical sets of chromosomes. Specification Point 3.29 - Understand that mitosis occurs during growth, repair, cloning and asexual reproduction. Specification Point 3.30 - Understand how division of a cell by meiosis produces four cells, each with half the number of chromosomes, and that this results in the formation of genetically different haploid gametes. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.11 - Describe the role of the placenta in the nutrition of the developing embryo. Specification Point 3.12 - Understand how the developing embryo is protected by amniotic fluid. Specification Point 3.13 - Understand the roles of oestrogen and testosterone in the development of secondary sexual characteristics. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.16B - Describe a DNA molecule as two strands coiled to form a double helix, the strands being linked by a series of paired bases: adenine (A) with thymine (T), and cytosine © with guanine (G). Specification Point 3.17B - Understand that an RNA molecule is single stranded and contains uracil (U) instead of thymine (T). Specification Point 3.18B - Describe the stages of protein synthesis including transcription and translation, including the role of mRNA, ribosomes, tRNA, codons and anticodons. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.12 -Understand the biological consequences of pollution of air by sulfur dioxide and carbon monoxide. Specification Point 4.13 - Understand that water vapour, carbon dioxide, nitrous oxide, methane and CFCs are greenhouse gases. Specification Point 4.14 - Understand how human activities contribute to greenhouse gases. Specification Point 4.15- Understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences. Specification Point 4.16 - Understand the biological consequences of pollution of water by sewage. Specification Point 4.17 - Understand the biological consequences of eutrophication caused by leached minerals from fertilizer. Complete set of Chapter 6 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.3 - Lipids. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.4.2 - Many proteins are enzymes. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.4.1 - General properties of proteins. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.4.2 - Many proteins are enzymes. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.2.4 - Cell recognition and the immune system. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.2.1.3 - Methods of studying cells. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.2 - Carbohydrates. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.4.3 - Genetic diversity can arise as a result of mutation or during meiosis. Complete set of Chapter 4 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.

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 3.5.1 - Photosynthesis. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.5.1 - Photosynthesis. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.5.1 - Photosynthesis. Complete set of Chapter 5 Lectures are available.

Complete set of concise, modern presentations for AQA A Level Biology (7401 and 7402) Chapter 6 - The Response of Organisms. Contains colour coded specification points. Eight presentations included: 42 - Survival and Response 43 - Receptors and Effectors 44 - The Control of Heart Rate 45 - Nerves and Synapses 46 - Muscles 47 - Homeostasis 48 - Controlling Blood Glucose 49 - The Kidneys

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.6.4.3 - Control of blood water potential. Complete set of Chapter 6 Lectures are available.