This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the A3.1 Diversity of Organisms in the new IB Biology specification. This Powerpoint consists of 93 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Videos Student research tasks Clearly identified HL and SL content The following content is included: A3.1.1: variation between organisms as a defining feature of life. A3.1.2: Species as groups of organisms with shared traits. A3.1.3: Binominal system for naming organisms A3.1.4: Biological species concept A3.1.5: Difficulties distinguishing between populations and species due to divergence and non-interbreeding populations during speciation. A3.1.6: Diversity in chromosome numbers of plant and animal species. A3.1.7: Karyotyping and karyograms A3.1.8: Unity and diversity of genomes between species. A3.1.8: Diversity of eukaryotic genomes A3.1.10: Comparison of genome sizes A3.1.11: Current and potential future uses of whole genomic sequencing. A3.1.12: Difficulties applying the biological species concept to asexually reproducing species and to bacteria that have horizontal gene transfer (HL only). A3.1.13: Chromosome number as a shared trait within a a species. A3.1.14: Engagement with local plant or animal species to develop dichotomous keys. A3.1.15: Identification of species from environmental DNA in a habitat using barcodes.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the Theme/Unit D2.2: Gene expression (HL only) in the new IB Biology specification. YouTube video is a preview of the full resource (does not include all slides) This Powerpoint consists of over 40 slides and contains the followings: All the information the IB have included in the new spec. Clear diagrams Student friendly content Summary videos Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: D2.2.1: Explain the term gene expression. D2.2.1: Outline how transcription can be regulated by proteins that bind to DNA. D2.2.1: Outline how translation can be regulated through the degradation of mRNA. D2.2.1: Explain the term epigenesis. D2.2.1: Describe the differences between the genome, transcriptome and proteome of individual cells. D2.2.1: Outline how methylation can affect gene expression. D2.2.1: Identify why some epigenetic changes are heritable. D2.2.1: Describe examples of how the environment can affect gene expression. D2.2.1: Outline consequences of removing epigenetic tags from human gametes. D2.2.1: Discuss the use of monozygotic twins to study gene expression. D2.2.1: Describe examples of external factors that can impact gene expression.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the B3.3 Muscle and motility in the new IB Biology specification. **YouTube video is a preview of the full resource (does not include all slides) ** This Powerpoint consists of 68 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: B3.3.1: Recognise the concept of movement in different species. B3.3.2: Outline the structure of a sarcomere. B3.3.3: Explain how a sarcomere contracts. B3.3.4: Outline the role of titin and antagonistic muscles in muscle relaxation. B3.3.5: Describe the structure and function of motor units in skeletal muscles. B3.3.6: Outline the role of the skeleton as anchorage for muscles and as levers. B3.3.7: Explain the role of the different components of a joint. B3.3.8: Compare the range of motion of a joint. B3.3.9: Explain the antagonistic action of the internal and external intercostal muscles. B3.3.10: Give examples of reasons for locomotion. B3.3.11: Describe adaptations for swimming in marine mammals.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the Theme/Unit D1.3: Mutations and gene editing in the new IB Biology specification. YouTube video is a preview of the full resource (does not include all slides) This Powerpoint consists of over 50 slides and contains the followings: All the information the IB have included in the new spec. Clear diagrams Student friendly content Summary videos Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: D1.3.1: Explain that gene mutations are structural changes to genes at the molecular level. D1.3.2: Outline the consequences of base substitutions. D1.3.3: Outline the consequences of insertions and deletions. D1.3.4: Recall that gene mutations can be caused by mutagens and by errors in DNA replication or repair. D1.3.5: Explain that mutations can occur anywhere in the base sequences of a genome. D1.3.6: Explain the effects of gene mutations occurring in germ cells and somatic cells. D1.3.7: Recognise that gene mutation is the original source of all genetic variation. D1.3.8: Outline that gene knockout is a technique for investigating the function of a gene by changing it to make it inoperative. D1.3.9: Explain the use of the CRISPR sequences and the enzyme Cas9 in gene editing. D1.3.10: Describe the hypotheses for conserved or highly conserved sequences in genes

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the A3.2 Classification and cladistics in the new IB Biology specification (HL only) This Powerpoint consists of 50 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Videos Student research tasks Clearly identified HL and SL content The following content is included: A3.2.1: Explain why a classification system is needed. (HL only) A3.2.2: Describe difficulties with the traditional hierarchy of taxa. (HL only) A3.2.3: Describe the advantages of basing classification on evolutionary relationships. (HL only) A3.2.4: Define a clade. (HL only) A3.2.5: Explain how the gradual accumulation of sequence changes can be used to determine the time since a common ancestor diverged into extant species (HL only) A3.2.6: Describe how base or amino acid sequences can be used in the construction of cladograms. (HL only) A3.2.7: Deduce evolutionary relationships from cladograms. (HL only) A3.2.8: Describe how cladistics can be used to assess whether classifications correspond to evolutionary relationships. (HL only) A3.2.9: Describe how the analysis of rRNA base sequences led to the introduction of the domain taxa. (HL only)

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the B2.3 Cell specialisation in the new IB Biology specification. **YouTube video is a preview of the full resource (does not include all slides) ** This Powerpoint consists of 45 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: B2.3.1: Explain how unspecialised cells form following fertilisation and how gradients impact gene expression for further development of the embryo. B2.3.2: Outline the properties of stem cells and their different capabilities to become different cell types. B2.3.3: Explain the function of stem cell niches and be able to describe bone marrow and hair follicles as examples of these. B2.3.4: Describe the size differences in various human cells. B2.3.5: Discuss the relationship between cells size and surface area in terms of the movement of material across a cell. B2.3.6: Identify and describe cell types that increase surface area-to-volume ratios B2.3.7: Describe specific adaptations that cells in the lung, heart, muscle and gonads have undergone to perform their functions.

This bundle contains 21 comprehensive checklist for the Cambridge iGCSE Biology syllabus. Each checklist contains a detailed breakdown of the content students are expected to know. The checklist use a RAG system (Red, Amber, Green) which students use to evaluate their understanding: Red: Students is not familiar with the objective and need to revise Amber: Student is somewhat familiar with the objective but still need to revise Green: Student is confident with the objective. These checklist are fantastic for supporting students with their revision for either end of year exams, end of topic revision or for their actual iGCSE.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach Theme/Unit B1.1 Carbohydrates and Lipids in the new IB Biology specification. This Powerpoint consists of 99 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Videos Student research tasks Clearly identified HL and SL content The following content is included: B1.1.1: Chemical properties of Carbon atoms allowing for the formation of diverse compounds upon which life is based. B1.1.2: Production of macromolecules by condensation reactions which link monomers to form polymers. B1.1.3: Digestion of polymers into monomers via hydrolysis reactions. B1.1.4: Form and function of monosaccharides. B1.1.5: Polysaccharides as a energy storage compound. B1.1.6: Structure of cellulose related to its function in plants. B1.1.7: Role of glycoproteins in cell recognition B1.1.8: Hydrophobic properties of water. B1.1.9: Formation of triglycerides and phospholipids by condensation reactions. B1.1.10: difference between saturated, monounsaturated and polyunsaturated fatty acids. B1.1.11: Triglycerides in adipose tissue as a storage of energy and insulation. B1.1.12: Formation of the phospholipid bilayer due to the hydrophobic and hydrophilic regions of phospholipids B1.1.13: The ability of steroid hormones to pass through phospholipid bilayers.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the A2.3 Viruses in the new IB Biology specification for HL This Powerpoint consists of 34 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Videos Student research tasks Clearly identified HL and SL content Student checklist The following content is included: A2.3.1: Structural features common to viruses A2.3.2: Diversity of structures in viruses. A2.3.3: Lytic cycle of a virus A2.3.4: Lysogenic cycle of a virus A2.3.5: Evidence for several origins of viruses from other organisms A2.3.6: Rapid evolution in viruses

This bundle consists of 9 end of unit exams for: A1.1 Water A1.2 Nucleic acids A2.1: Origins of cells A2.2: Cell structure A2.3: Viruses A3.1: Diversity in organisms A3.2: Classification & cladisitics A4.1: Evolution & Speciation A4.2: Ecosystems Exam exam can be used as an end of topic exam and consists of: 7-10 multiple choice questions Questions using IB command terms: state, explain, analyse, describe Data based question Mark schemes included

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the B2.1 Membranes and membrane transport in the new IB Biology specification. **YouTube video is a preview of the full resource (does not include all slides) ** This Powerpoint consists of 62 slides and contains the followings: All the information ( HL) the IB have included in the new spec. Exam tips Clear diagrams Videos Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: B2.1: Describe the formation of sheet-like bilayers in water by amphipathic lipids. B2.2: Explain the reasons behind the selective permeability of the lipid bilayer. B2.3: Discuss the movement of molecules by diffusion across the lipid bilayer. B2.4: Identify integral and peripheral proteins. B2.5: Discuss the role of aquaporins in transporting water. B2.6: Describe the structure and role of channel proteins. B2.7: Explain the importance of pump proteins in active transport. B2.8: Explain the role of facilitated diffusion and active transport in the selective permeability of membranes. B2.9Describe glycoproteins and glycolipids with respect to their structure and function. B2.10: Draw the fluid mosaic model of membrane structure. B2.11:Describe the role of lipids in membrane fluidity. B2:12: Discuss the role of cholesterol in membrane fluidity. B2.13: Differentiate between exocytosis and endocytosis. B2.14: Describe the role of gated channels. B2.15: Explain the mechanisms of direct active and indirect active transport. B2.16: State the role of cell-adhesion molecules. B2.17:  Identify the different types of cell junctions.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the Theme/Unit C3.2 Defence against diseases in the new IB Biology specification. **YouTube video is a preview of the full resource (does not include all slides) ** This Powerpoint consists of over 90 slides and contains the followings: All the information the IB have included in the new spec. Exam tips Clear diagrams Summary videos Student research tasks Clearly identified HL and SL content Student checklist **Exam style questions Summary The following content is included: C3.2.1: Identify the categories of pathogens. C3.2.2: Describe the role of the skin and mucous membranes in primary defence of the body. C3.2.3: Explain the process of clotting of blood. C3.2.4: Differentiate between innate immune system and adaptive immune system. C3.2.5: State the role of phagocytes in controlling infection. C3.2.6: Explain the role of lymphocytes in adaptive immune responses. C3.2.7: Recall that antigens trigger antibody production. C3.2.8: Explain the activation of T-lymphocytes by helper T-cells. C3.2.9: Outline the role of activated B-lymphocytes in production of sufficient quantities of antibodies. C3.2.10: Describe the role of memory cells in immunity. C3.2.11: Describe the means of transmission of HIV. C3.2.12: Study the effect of the virus on the functioning of the immune system (lymphocytes) C3.2.13: State the role of antibiotics in controlling bacterial infections. C3.2.14: Infer the causes of bacterial resistance. C3.2.15: Explain the transmission of zoonotic diseases. C3.2.16: Explain the role of vaccines in developing immunity. C3.2.17: Describe the interdependence of a population in building herd immunity. C3.2.18: Evaluate data related to COVID-19 pandemic

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the Theme/Unit C1.3 Photosynthesis in the new IB Biology specification. **YouTube video is a preview of the full resource (does not include all slides) ** This Powerpoint consists of over 50 slides and contains the followings: All the information the IB have included in the new spec. Exam tips Clear diagrams Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: C1.3.1: Explain how the energy transformation of light energy to chemical energy is needed for most life processes in ecosystems. C1.3.2: Describe photosynthesis as the conversion of carbon dioxide to glucose. C1.3.3: Describe the production of oxygen as a by-product of photosynthesis. C1.3.4: Describe the process of chromatography for separating pigments and the use of Rf values to identify pigments. C1.3.5: Describe and explain the absorption of different wavelengths of light by photosynthetic pigments. C1.3.6: Compare absorption and action spectra C1.3.7: Determine through investigation the effects of limiting factors on the rate of photosynthesis. C1.3.8: Describe carbon dioxide enrichment experiments as a means of predicting future rates of photosynthesis and plant growth. C1.3.9: Describe photosystems as arrays of pigments within membranes of photosynthetic organisms that generate and emit excited electrons. C1.3.10: Explain the advantage that an array of pigments in a photosystem has over individual pigment molecules. C1.3.11: Describe the photolysis of water in terms of a means of replacing lost electrons in photosystem II and the production of oxygen as a waste product. C1.3.12: Describe the production of ATP by chemiosmosis through both cyclic and non-cyclic photophosphorylation. C1.3.13: Describe the reduction of NADP by photosystem I. C1.3.14: Explain the importance of the thylakoids as the site of photolysis, chemiosmosis and reduction of NADP. C1.3.15: Describe  carbon fixation by Rubisco and the significance  of Rubisco as an enzyme. C1.3.16: Describe the process of generating triose phosphate using ATP and reduced NADP. C1.3.17: Describe the regeneration of RuBP and the completion of the Calvin Cycle using ATP. C1.3.18: Describe the production of a variety of carbon compounds from photosynthesis. C1.3.19: Explain the link between the light-dependent and light-independent reactions and how the light-independent reactions cannot continue in the absence of light.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the Theme/Unit C3.1 Integration of body systems in the new IB Biology specification. **YouTube video is a preview of the full resource (does not include all slides) ** This Powerpoint consists of over 100 slides and contains the followings: All the information the IB have included in the new spec. Exam tips Clear diagrams Summary videos Student research tasks Clearly identified HL and SL content Student checklist **Exam style questions Summary The following content is included: C3.1.1: Describe the importance of integration of body systems. C3.1.2: Explain the hierarchy of biological organisation. C3.1.3: Compare the roles of the nervous system and endocrine system in signalling. C3.1.4: Describe the roles of the brain and spinal cord in processing information. C3.1.5: Compare the roles of sensory and motor neurons. C3.1.6: Examine a transverse section of a myelinated nerve. C3.1.7: Describe the structure of a pain reflex arc. C3.1.8: Explain the role of the cerebellum in coordination and balance. C3.1.9: Explain the impact of melatonin on circadian rhythms. C3.1.10: Analyse the effects of epinephrine on the body. C3.1.11: Describe the feedback mechanisms that regulate the functioning of the endocrine system. C3.1.12: State the role of baroreceptors and chemoreceptors in the feedback control of the heart rate. C3.1.13: Describe the role of chemoreceptors in controlling the rate of ventilation. C3.1.14: Outline the mechanism for peristaltic control by the CNS and ENS. C3.1.15: Observe tropic responses in seedlings. C3.1.16: Describe positive phototropism. C3.1.17: Outline the functions of the different types of phytohormones. C3.1.18: Explain the movement and concentration of auxins within plant cells. C3.1.19: Describe the role of auxins in cell growth. C3.1.20: Study the regulation of root and shoot growth by the interaction between cytokinins and auxins. C3.1.21: Explain the positive feedback mechanism in the production of ethylene by ripening fruit.

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here This PowerPoint contains everything you need to teach the Theme/Unit D3.1: Reproduction in the new IB Biology specification. YouTube video is a preview of the full resource (does not include all slides) This Powerpoint consists of over 85 slides and contains the followings: All the information the IB have included in the new spec. Clear diagrams Student friendly content Summary videos Student research tasks Clearly identified HL and SL content Student checklist Summary The following content is included: D3.1.1: Differentiate between sexual and asexual reproduction. D3.1.2: Describe the role of meiosis in creating variation in sexually reproducing organisms. D3.1.3: Compare the differences between the male and female sexes. D3.1.4: Draw diagrams of the male (typical) and female (typical) reproductive systems. D3.1.5: Annotate the names of the parts and their functions on the diagrams. D3.1.6: Describe the hormonal regulation of the menstrual cycle. D3.1.7: Elucidate the sequence of events leading to fertilisation. D3.1.8: Explain the role of hormones in IVF. D3.1.9: Describe the mechanism of sexual reproduction in plants. D3.1.10: Explain the features of insect-pollinated flowers. D3.1.11: Draw annotated diagrams of insect pollinated flowers. D3.1.12: Describe strategies that facilitate cross-pollination in plants. D3.1.13: Determine the role of self-incompatibility mechanisms in increasing genetic variation in a plant species. D3.1.14: Explain the mechanism of seed dispersal and germination. D3.1.15: Outline the role of GnRH, LH, FSH and the sex hormones in the changes associated with puberty. D3.1.16: Describe oogenesis and spermatogenesis in humans. D3.1.17: Identify the mechanisms that prevent polyspermy. D3.1.18: Outline the development of the blastocyst and subsequent implantation in the endometrium. D3.1.19: State the role of hCG in pregnancy and pregnancy testing. D3.1.20: Describe the role of the placenta during foetal development. D3.1.21: Discuss the role of hormones in maintaining pregnancy and initiating childbirth. D3.1.22: Correlate between HRT and risk of coronary heart disease

This resource is perfect for teaching meiosis and mitosis to a year 10/11 class studying GCSE or iGCSe biology. The lesson contains: Starter tasks Recap tasks All key information for explaining mitosis and meiosis Differeneces between the two forms of cell division.

This resource is perfect for a Year 9/10 class studying GCSE Stem cells. The lesson contains a starter tasks, recap on prior knowledge, student tasks with answers, exam style questions and research tasks. The following content is covered: Engaging starter with videos Student research tasks Notes on the different types of stem cells Therapeutic cloning Use of stem cells to cure blindness Ethics of stem cells Stem cells in plants Exam style questions Plenary tasks

The lesson is the perfect introduction to smoking for a mixed ability class. The lesson contains: Starter tasks Research tasks on smoking when pregnant and effects of smoking Engaging tasks Plenary task