ALL of CIE IGCSE Biology! | The ONLY revision video you need! | 2024 onwards | 0970 / 0610

Introduction

This tutorial is designed to provide a comprehensive overview of the key concepts covered in the CIE IGCSE Biology curriculum (0970/0610) for examinations from 2023 onwards. Drawing from the video by Science with Hazel, this guide will help you navigate through essential topics, making your revision more structured and effective.

Step 1: Understand Characteristics of Living Organisms

• Define the seven characteristics of living organisms:
  • Movement
  • Respiration
  • Sensitivity
  • Growth
  • Reproduction
  • Excretion
  • Nutrition
• Consider how each characteristic applies to different organisms.

Step 2: Learn Classification and Use of Dichotomous Keys

• Familiarize yourself with the classification hierarchy (domain, kingdom, phylum, class, order, family, genus, species).
• Practice using dichotomous keys to identify organisms based on physical characteristics.

Step 3: Explore Cell Structures and Functions

• Identify key cell structures (nucleus, cytoplasm, cell membrane, etc.) and their functions.
• Understand the differences between plant and animal cells, including specialized structures like chloroplasts and cell walls.

Step 4: Calculate Magnification

• Use the formula for magnification:
  • Magnification = Size of image / Size of object
• Practice with examples to ensure you can apply this in exam scenarios.

Step 5: Study Transport Mechanisms

• Differentiate between diffusion, osmosis, and active transport:
  • Diffusion: Movement of molecules from high to low concentration.
  • Osmosis: Movement of water through a semi-permeable membrane.
  • Active Transport: Movement of substances against a concentration gradient using energy.
• Use diagrams to visualize these processes.

Step 6: Understand Biological Molecules and Enzymes

• Identify the four main types of biological molecules: carbohydrates, proteins, lipids, and nucleic acids.
• Learn how enzymes function as biological catalysts and the factors affecting enzyme activity (temperature, pH, substrate concentration).

Step 7: Explore Photosynthesis and Leaf Structure

• Outline the process of photosynthesis, including the equation and importance of chlorophyll.
• Study leaf structure, focusing on adaptations for photosynthesis (stomata, palisade mesophyll).

Step 8: Examine the Digestive System

• Describe the organs involved in the digestive system and their functions (mouth, esophagus, stomach, intestines).
• Understand mechanical and chemical digestion processes.

Step 9: Investigate the Circulatory and Immune Systems

• Identify components of the circulatory system (heart, blood vessels, blood) and their functions.
• Learn how the immune system defends the body against pathogens.

Step 10: Learn about Gas Exchange and Respiration

• Understand the process of gas exchange in humans, focusing on the role of the lungs.
• Differentiate between aerobic and anaerobic respiration and their importance.

Step 11: Study Human Reproduction and Genetics

• Review the stages of human reproduction, including fertilization and embryonic development.
• Learn basic genetics concepts, including chromosomes, genes, and inheritance patterns.

Step 12: Explore Evolution and Ecology

• Understand natural selection and its role in evolution.
• Study ecosystems, including food chains, energy flow, and human impact on the environment.

Conclusion

This guide summarizes essential topics for the CIE IGCSE Biology curriculum. Review each section carefully, and consider using diagrams and practice questions to reinforce your understanding. Next steps include participating in study workshops or seeking additional resources for challenging topics. Happy studying!