Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.18B - Understand the effects of deforestation, including leaching, soil erosion, disturbance of evapotranspiration and the carbon cycle, and the balance of atmospheric gases. Complete set of Chapter 6 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 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 2.18 - Understand the process of photosynthesis and its importance to the conversion of light energy into chemical energy. Specification Point 2.19 - Know the word equation and balanced chemical symbol equation for photosynthesis. Specification Point 2.20 - Understand how varying carbon dioxide concentration, light intensity and temperature affect the rate of photosynthesis. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.23 - Practical: Investigate photosynthesis, showing the evolution of oxygen from a water plant, the production of starch and the requirements of light, carbon dioxide and chlorophyll. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.27 - Describe the structure and function of the human alimentary canal, including: the mouth esophagus, stomach, small intestine, large intestine and pancreas. Specification Point 2.28 - Understand how food is moved through the gut by peristalsis. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.6.1.1 - Survival and response. Complete set of Chapter 6 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.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.4.1.2 - Rate of photosynthesis. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.4.2.1 - Aerobic and anaerobic respiration. Specification Point 4.4.2.2 - Response to exercise. Specification Point 4.4.2.3 - Metabolism. Complete set of Chapter 4 Lectures are available.

Complete set of concise, modern presentations for AQA GCSE Biology (8461) Chapter 4 - Bioenergetics. Contains colour coded specification points with handmade vector graphics. Three presentations included: 19 - Photosynthesis 20 - The Rate of Photosynthesis 21 - Respiration

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.2.2 - The brain. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.3.4 - Hormones in human reproduction. Specification Point 4.5.3.5 - Contraception. Specification Point 4.5.3.6 - The use of hormones to treat infertility. Specification Point 4.5.3.7 - Negative feedback. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.1 - Homeostasis. Specification Point 4.5.2.4 - Control of body temperature. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.3.1 - The human endocrine system. Specification Point 4.5.3.2 - Control of blood glucose concentration. Complete set of Chapter 5 Lectures are available.

Complete set of concise, modern presentations for AQA GCSE Biology (8461) Chapter 5 - Homeostasis and Response. Contains colour coded specification points with handmade vector graphics. Eight presentations included: 22 - The Nervous System 23 - The Brain 24 - The Eye 25 - Homeostasis and Thermoregulation 26 - The Endocrine System 27 - The Kidneys 28 - Puberty and the Menstrual Cycle 29 - Plant Hormones

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.4.1 - Control and coordination regarding plant hormones. Required Practical 8 - Investigating the effect of light on the growth of newly germinated seedlings. Specification Point 4.5.4.2 - Use of plant hormones. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.3.3 - Maintaining water and nitrogen balance in the body. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.2.1 - Structure and function of the human nervous system. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.3.3.1 - Detection and identification of plant diseases. Specification Point 4.3.3.2 - Plant defence responses. Complete set of Chapter 3 Lectures are available.