PowerPoint presentation and worksheet on X and Y chromosomes for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Content covered: X chromosomes and Y chromosomes Meiosis and fertilisation Introduction to genetic diagrams using X and Y chromosomes as an example Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

Meiosis Slides and Worksheet (GCSE Biology AQA). PowerPoint presentation and worksheet on meiosis for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on DNA, protein synthesis and mutations for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Next topic Reproduction: https://www.tes.com/teaching-resource/resource-12376794 Content Covered: DNA structure Protein synthesis Human genome mapping Mutations (insertions, deletions and substitutions) Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on gas exchange for A-Level biology for teaching and revision. Key points from GCSE are recapped in the presentation. Content Covered: Gas exchange in humans Inspiration and expiration Gas exchange in fish Gas exchange in insects Gas exchange in plants Xerophytes Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on xylem and phloem for A-Level biology for teaching and revision. Key points from GCSE are recapped in the presentation. Content Covered: Xylem and phloem Transpiration Cohesion-Tension theory Rate of transpiration Potometers Translocation Mass flow hypothesis Autoradiography Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation on metabolism and homeostasis for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Homeostasis lesson GCSE biology https://www.tes.com/teaching-resource/resource-12960089

Discussion exercise on assisted reproduction for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Related topic The Menstrual Cycle: https://www.tes.com/teaching-resource/-12366008 Content Covered: Hormone therapy (LH and FSH) In vitro fertilisation (IVF) Intra-cytoplasmic sperm injection (ICSI) Bioethics Please note that this only covers the science and is not intended as a PSHE resource. Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on the eye for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Next topic Body Temperature: https://www.tes.com/teaching-resource/resource-12362801 Content Covered: Parts of the eye The iris reflex Accommodation (near and distant objects) Short- and long-sightedness Convex and concave lenses Other methods of vision correction Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on the brain for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Next topic The Eye: https://www.tes.com/teaching-resource/resource-12362148 Content Covered: Brain structure and function Studying the brain Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on drugs and drug development for teaching and revision. This resource follows the AQA Biology GCSE syllabus. Leads on to Monoclonal Antibodies: https://www.tes.com/teaching-resource/monoclonal-antibodies-slides-and-worksheet-gcse-biology-aqa-12357328 Content Covered: Antibiotics Antibiotic resistance Drug discovery Preclinical and Clinical trials Animal testing Double-blind studies Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. New! Drugs Lesson GCSE Biology https://www.tes.com/teaching-resource/resource-12948723

PowerPoint presentation and worksheet on digestive enzymes for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Leads on to the Respiratory System: https://www.tes.com/teaching-resource/respiratory-system-slides-and-worksheet-gcse-biology-aqa-12337350 Content Covered: Overview of the digestive system Proteases, lipases and carbohydrases Bile Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Digestive Enzymes Lesson https://www.tes.com/teaching-resource/resource-12903171

PowerPoint presentation and worksheet on cell organisation for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Leads on to Enzymes: https://www.tes.com/teaching-resource/enzymes-slides-and-worksheet-gcse-biology-aqa-12345968 and Plant Cell Organisation: https://www.tes.com/teaching-resource/plant-cell-organisation-slides-and-worksheet-gcse-biology-aqa-12315439 Content Covered: Hierarchy of cell organisation from cell to organism Glandular, muscle and epithelial tissue The digestive system Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo NEW: Cell organisation lesson https://www.tes.com/teaching-resource/resource-12842264

Key Stage 4 ~ GCSE Biology~ lesson on Reflexes. In this lesson pupils will describe reflex arcs, explain why reflexes are useful and give some examples of reflex arcs. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Task boxes -Handout sheet task -Order the steps -Identification task (Is it a Reflex?) -Answer slides included for self-assessment -Suitable for remote, online, distance learning -Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge apart from the keyword pathogen which means disease-causing microorganism (germs). Discussion/extension answers are in the ppt notes. -Next lesson The Brain https://www.tes.com/teaching-resource/resource-12994716 https://www.tes.com/teaching-resources/shop/Dr_Troilo

Key Stage 4 ~ GCSE Biology~ short lesson on the Reaction Time Practical designed to be used with a practical session or as year 11 pre-exam revision of the required practical. In this lesson pupils will learn a method for measuring reaction time, explain the different variables in this experiment and interpret data from the experiment. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Order the steps -Task boxes -Discussion exercise -Handout sheet task -Comprehension questions -Answer slides included for self-assessment -Suitable for remote, online, distance learning -Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge. Discussion/extension answers are in the ppt notes. https://www.tes.com/teaching-resources/shop/Dr_Troilo

Key Stage 4 ~ GCSE Biology~ full lesson on Oxygen Debt. In this lesson pupils will describe the effect of exercise on the body, explain what is meant by oxygen debt and discuss how you can investigate the effect of exercise on the body. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. This lesson includes: -Title slide with learning objectives -A starter activity -Prior knowledge check -Group reading (literacy) -Task boxes -Discussion exercise -Handout sheet task -Comprehension questions -Answer slides included for self-assessment -Suitable for remote, online, distance learning -Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge apart from the keyword pathogen which means disease-causing microorganism (germs). Discussion/extension answers are in the ppt notes. -Next lesson Revision Bioenergetics https://www.tes.com/teaching-resource/resource-12956850

Key Stage 4 ~ GCSE Biology~ introductory lesson on the Nervous system. In this lesson pupils will describe different parts of the nervous system, explain how synapses connect neurons and explain response co-ordination from stimulus to response. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the GCSE Biology AQA course. There is a free revision lesson for the Reaction Times Required Practical available here: https://www.tes.com/teaching-resource/resource-12963365 This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Comprehension questions -Task boxes -Discussion exercise -Order the steps -Handout sheet task -Identification task Extension task -Answer slides included for self-assessment -Suitable for remote, online, distance learning -Suitable for supply teaching and home learning. This is fully self-explanatory and can be delivered without specialist knowledge apart from the keyword pathogen which means disease-causing microorganism (germs). Discussion/extension answers are in the ppt notes. -Next lesson Reflexes https://www.tes.com/teaching-resource/resource-12967732 https://www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 4 ~ GCSE ~ revision package for bioenergetics (topic 4, GCSE Biology AQA). This lesson can be used to revise for end of topic tests, as exam preparation or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: -Photosynthesis -Aerobic Respiration -Anaerobic Respiration -Oxygen Debt -Metabolism -Return to the start of the topic https://www.tes.com/teaching-resource/resource-12956850