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We understand the importance of education. We offer tailored private tuition designed to maximise success at GCSE, A Level and beyond. Our tutors are experienced professionals, teachers and top-tier graduates with extensive knowledge in their subjects.
On Tes we offer high quality board-specific resources. Please check back regularly as we are continually updating our stock.
Companion PDF worksheet for Edexcel IGCSE Biology Lecture 61 - Genetic Modification. Contains short answer questions, an activity requiring lateral thinking and exam-style questions.
Specification Point 5.12 - Understand how restriction enzymes are used to cut DNA at specific sites and ligase enzymes are used to join pieces of DNA together.
Specification Point 5.13 - Understand how plasmids and viruses can act as vectors, which take up pieces of DNA, and then insert this recombinant DNA into other cells.
Specification Point 5.14 - Understand how large amounts of human insulin can be manufactured from genetically modified bacteria that are grown in a fermenter.
Specification Point 5.15 - Understand how genetically modified plants can be used to improve food production.
Specification Point 5.16 - Understand that the term transgenic means the transfer of genetic material from one species to a different species.
Complete set of Chapter 7 Worksheets are available.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 3.3 - Describe the structures of an insect-pollinated and a wind-pollinated flower and explain how each is adapted for pollination.
Specification Point 3.4 - Understand that the growth of the pollen tube followed by fertilization leads to seed and fruit formation.
Specification Point 3.5 - Practical: investigate the conditions needed for seed germination.
Specification Point 3.6 - Understand how germinating seeds utilise food reserves until the seedling can carry out photosynthesis.
Specification Point 3.7 - Understand that plants can reproduce asexually by natural methods (illustrated by runners) and by artificial methods (illustrated by cuttings).
Complete set of Chapter 5 Lectures are available.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 3.4.7 - Investigating diversity.
Complete set of Chapter 4 Lectures are available.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 3.3.2 - Gas exchange.
Complete set of Chapter 3 Lectures are available.
Complete set of concise, modern presentations for AQA A Level Biology (7401 and 7402) Chapter 3 - The Exchange of Substances. Contains colour coded specification points. Nine presentations included:
18 - Size and Surface Area
19 - Gas Exchange
20 - Gas Exchange in Humans
21 - Lung Disease
22 - Digestion and Absorption
23 - Haemoglobin
24 - The Circulatory System
25 - Cardiovascular Disease
26 - Xylem and Phloem
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 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 Lessons are available.
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.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 2.10 - Understand the role of enzymes as biological catalysts in metabolic reactions.
Specification Point 2.11 - Understand how temperature changes can affect enzyme function, including changes to the shape of the active site.
Specification Point 2.12 - Practical: Investigate how enzyme activity can be affected by changes in temperature.
Specification Point 2.13 - Understand how enzyme function can be affected by changes in pH altering the active site.
Complete set of Chapter 1 Lectures are available.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 2.59 - Describe the composition of the blood: red blood cells, white blood cells, platelets and plasma.
Specification Point 2.60 - Understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy.
Specification Point 2.61 - Understand how adaptations of red blood cells make them suitable for the transport of oxygen, including shape, the absence of a nucleus and the presence of haemoglobin.
Specification Point 2.62 - Understand how the immune system responds to disease using white blood cells, illustrated by phagocytes ingesting pathogens and lymphocytes releasing antibodies specific to the pathogen.
Complete set of Chapter 3 Lectures are available.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 2.51 - Understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell.
Specification Point 2.52 - Understand the need for a transport system in multicellular organisms.
Specification Point 2.53 - Describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant.
Complete set of Chapter 3 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 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 4.10 - Describe the stages in the carbon cycle, including respiration, photosynthesis, decomposition and combustion.
Complete set of Chapter 6 Lectures are available.
Powerpoint lecture covering the following in a modern, concise format:
Specification Point 5.17B - Describe the process of micropropagation (tissue culture) in which explants are grown in vitro.
Specification Point 5.18B - Understand how micropropagation can be used to produce commercial quantities of genetically identical plants with desirable characteristics.
Specification Point 5.19B - Describe the stages in the production of cloned mammals involving the introduction of a diploid nucleus from a mature cell into an enucleated egg cell, illustrated by Dolly the sheep.
Complete set of Chapter 7 Lectures are available.
Complete set of concise, modern presentations for Edexcel IGCSE Biology (4BI0) Chapter 3 - Movement of Substances in Living Organisms. Contains colour coded specification points with handmade vector graphics. Nine presentations included:
18 - Gas Exchange in Plants
19 - Ventilation
20 - The Alveoli and Lung Disease
21 - Transport Mechanisms
22 - Transpiration
23 - The Blood
24 - Vaccination
25 - The Heart
26 - The Circulatory System
