Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.7.1.1 - Communities. Specification Point 4.7.1.2 - Abiotic factors. Specification Point 4.7.1.3 - Biotic factors. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.2.1: The human digestive system. Practical 4 - Conduct qualitative chemical tests for starch, reducing sugars, proteins, and lipids. Complete set of Chapter 2 Lectures are available.

A useful resource for students to practice their knowledge and examination technique for future external assessments. This is for the following paper: 4BI1 - 2B These questions are completely original and have been designed from scratch. There has been no reuse of previous exam questions. Our mock paper follows the format of the true Edexcel IGCSE Biology 2B paper closely. The obligatory comprehension question is also included. A mark scheme is also attached. The paper covers the following specification points: • Topic 2c Biological molecules (including practical 2.9 and practical 2.14B) (2.7 – 2.14B) • Topic 2g Gas exchange (including practical 2.45B) (2.40B – 2.50) • Topic 2i Excretion (2.70 – 2.79B) • Topic 3b Inheritance (3.14 – 3.39) • Topic 4c Cycles within ecosystems (4.10 – 4.11B) • Topic 4d Human influences on the environment (4.12 – 4.18B) Disclaimer: This document was created by department heads with many years of experience teaching the Pearson Edexcel IGCSE Biology course. We cannot however guarantee that it is an accurate representation of upcoming examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

Powerpoint lecture and associated PDF worksheet 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. 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 Lessons are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.4.1 - Mass transport in animals. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.6.2.1 - Nerve impulses. Specification Point 3.6.2.2 - Synaptic transmission. Complete set of Chapter 6 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.

A PowerPoint Quiz with question for Edexcel IGCSE Biology (4BI0) Chapters 1 - Living Organisms. Perfect for an end of topic revision exercise. Matches well with our presentations and worksheets. The quiz is out of a possible 95 marks.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.6 - ATP. Specification Point 3.1.7 - Water. Specification Point 3.1.8 - Inorganic ions. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.4.1 - DNA, genes and chromosomes. 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.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.5.3 - Energy and ecosystems. Complete set of Chapter 5 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 3.8.1 - Alteration of the sequence of bases in DNA can alter the structure of proteins. Specification Point 3.8.2.3 - Gene expression and cancer. Complete set of Chapter 8 Lectures are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.5B - Explain the importance of cell differentiation in the development of specialised cells. Specification Point 2.6B - Understand the advantages and disadvantages of using stem cells in medicine. Complete set of Chapter 1 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.70 - Understand the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a leaf. Specification Point 2.71 - Know the excretory products of the lungs, kidneys and skin. Complete set of Chapter 4 Lessons are available.

Powerpoint lecture and associated PDF worksheet 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 Lessons are available.

Powerpoint lecture and associated PDF worksheet 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 Lessons are available.

Powerpoint lecture and associated PDF worksheet 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 Lessons are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.2.2 - All cells arise from other cells. Complete set of Chapter 2 Lectures are available.