OCR A Level Biology A lesson on PAG 6 - Chromatography. This is one of the lessons to meet the specification points for 2.1.2 Biological Molecules. Objectives for this lesson: Describe the principles and uses of paper and thin layer chromatography to separate biological molecules/compounds. Analyse the paper chromatography and calculate the Rf value for each amino acid. Interpret the results to identify the amino acids present in the solution. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included).

OCR A Level Biology A lesson on DNA Replication. This is one of seven lessons to meet the specification points for 2.1.3 Nucleotides and Nucleic Acids. Objectives for this lesson: State why DNA replication is semi-conservative. Describe the process of DNA replication. Explain the roles of the enzymes helicase and DNA polymerase in DNA replication. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A lesson on ECG Traces. This is one of ten lessons to meet the specification points for 3.1.2 Transport in Animals. Specification points: 3.1.2 (h) Objectives for this lesson: • Describe how ECGs can be used. • Calculate heart rate using an ECG trace. • Interpret ECG traces of both normal and abnormal heart activity. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

Complete lesson and worksheet on Energy and Power with worked examples and calculations. Lesson will take between 1-2 lessons depending on ability of group. The lesson works through what is power, then on to changing between units with some practice questions before moving onto the Power equations and practicing using them to calculate energy, power and time. Questions increase in difficulty with more longer questions later on. All answers are included to allow students to self assess. The lesson then goes on to looking at how to calculate cost of electricity. Hope you like it. If so, please leave a review.

This is the a complete excel workbook with all learning objectives for the OCR A Level Biology A Specification. Each topic has its own tab, the first spreadsheet hyperlinks to each topic as needed (and hyperlink back to table of contents (TOC) and the layout has been set ready for printing, with some topics that take up two pages having the headings ready to go on both. Please leave a review and check out my other items.

OCR A Level Biology A lessons on The Specific Immune Response. This is two of thirteen lessons to meet the specification points for 4.1.1 Communicable Diseases, disease prevention and the immune system. Specification points: 4.1.1 (f, h, i) Objectives for first lesson on cell mediated response: • List the cells involved in the specific immune response. • Describe the roles of B and T lymphocytes. • Explain the main stages of the specific immune response. Objectives for second lesson on humoral response: • Recall the role of antibodies. • Outline the action of opsonins, agglutinins and anti-toxins. • Explain the structure and function of antibodies. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A lesson on Transcription and Translation. This is one of seven lessons to meet the specification points for 2.1.3 Nucleotides and Nucleic Acids. Objectives for this lesson: Describe the roles of mRNA, tRNA and rRNA. Describe the processes of transcription and translation. Explain how polypeptides are synthesised through transcription and translation of genes. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A lesson on The Genetic Code. This is one of seven lessons to meet the specification points for 2.1.3 Nucleotides and Nucleic Acids. Objectives for this lesson: Recall the structure of an amino acid and polymerisation. Describe how a gene determines the sequence of amino acids in a polypeptide. Explain the nature of the genetic code. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A lesson on DNA Structure and Modelling. This is one of seven lessons to meet the specification points for 2.1.3 Nucleotides and Nucleic Acids. Objectives for this lesson: Describe the structure of DNA. Understand the synthesis and breakdown of polynucleotides. Explain why DNA has a ‘double helix’ shape. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A lessons on Pathogens & Modes of Transmission. This is two of thirteen lessons to meet the specification points for 4.1.1 Communicable Diseases, disease prevention and the immune system. Specification points: 4.1.1 (a, b) Objectives for this lesson: • Recall the different types of pathogen. • Describe the means of transmission of pathogens in both plant and animals. • Evaluate how living conditions can influence the transmission rates of pathogens. First lesson is covering the theory and setting the homework task of creating a presentation on one of the pathogens ready to present in the second lesson. During presentation in the second lesson, students can complete notes on the required information. BONUS content: I have also included a marking rubric that can be used to provide feedback. All you need to go is fill in the student name and marks for each area on the Marking sheet and then print off the Print spreadsheet, I usually print these 2 per page. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

I created this worksheet as a support sheet for students struggling with drawing Punnett squares in the genetics topic. This worksheet is best printed off on A3 and works to walk students through the steps involved in determining the alleles of the parents and creating a Punnett square to determine the probability of certain outcomes. The layout is in a style that allows students to easily follow the process. Have used a similiar format in the past on calculation style questions in physics and drawing ionic bonds in chemistry and students loved it! I have also included the answer sheet to go with it.

OCR A Level Biology A lesson on Magnification and Calibration. This is one of seven lessons to meet the specification points for 2.1.1 Cell Structure. Specification points: 2.1.1 (d & e) Objectives for this lesson: • State the formula for calculating magnification. • Describe how to calibrate a microscope using an eyepiece graticule and stage micrometer. • Calculate magnification using the formula. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A lesson on Maintaining Biodiversity. This is one of nine lessons to meet the specification points for 4.2.1 Biodiversity. Specification points: 4.2.1 (g) Objectives for this lesson: Recall the factors affecting biodiversity. Describe the reasons for maintaining biodiversity. Explain, with examples the reasons for maintaining biodiversity. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.

OCR A Level Biology A specification linked lesson on Properties of Water. This is one lesson of two on water for the specification. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included).

OCR A Level Biology A lesson on PAG 4.3 Rates of Enzyme Controlled Reactions - Temperature. This is one of eight lessons to meet the specification points for 2.1.4 Enzymes. Objectives for this lesson: • Recall the effect of temperature on enzyme activity. • Describe how the rate of an enzyme-controlled reaction can be measured. • Design an investigation to determine the effect of temperature on enzyme activity. Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.