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 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.

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.

Here is a workbook and answers for the whole of 4.1.1 Communicable Diseases, disease prevention and the immune system. This workbook is designed to go alongside my lessons that you can purchase.

OCR A Level Biology A lesson on Structure and Function of Gas Exchange System in Insects. This is one of eight lessons to meet the specification points for 3.1.1 Exchange Surfaces. Specification points: 3.1.1 (f) and (g) Objectives for this lesson: • Describe the structure of gas exchange system in an insect. • Explain how ventilation works in insects. • Demonstrate how the gaseous exchange system of an insect works through the use of modelling/dissection. 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 New Medicines. This is one 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 (m) Objectives for this lesson: • Describe possible sources of medicines. • Explain the connection between maintaining biodiversity and sources of medicines. • Understand the potential for personalised medicines and synthetic biology. 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 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.

This is designed for the OCR A Level Biology A Module 4.2.2 Classification and Evolution SLOP Booklet and Answers. It is a 50 page workbook for students to fill in and also has exam questions for each lesson. There is also answer books included. This workbook was designed with my lessons, so please check them out as well. Please leave a review.

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.

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 9 DNA Purification. 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 DNA. Purify DNA by precipitation. Explain the purpose of different stages in the purification of DNA Check out my other lessons and the accompanying workbook with exam questions (and answer booklet included). Please leave a review.