Cells, Organ Systems & Ecosystems

Cells & Movement Across Membranes

Animal & Plant Cells

Using Microscopes to Examine Cells

Organisation & Differentiation of Cells

The Process of Diffusion

The Process of Osmosis

The Process of Active Transport

Enzymes

Enzyme-controlled Reactions

Factors Affecting Enzyme Activity

Investigating Factors Affecting Enzyme Action

Respiration & the Respiratory System in Humans

Aerobic Respiration

Anaerobic Respiration

Human Respiratory System

Breathing

The Bell Jar Model

Adaptations of the Alveolus

Comparing Inspired & Expired Air

The Effects of Smoking

Digestion & the Digestive System in Humans

The Need for Digestion

Food Tests

Enzymes in Digestion

The Human Digestive System

Peristalsis

Function of Bile

Absorption of Substances in the Small Intestine

The Products of Digestion

Diet & Energy Content of Food

Investigating the Energy Content of Foods

Circulatory System in Humans

The Blood

The Human Heart

The Human Circulatory System

Capillary Networks

Cardiovascular Disease

Plants & Photosynthesis

Photosynthesis

Conditions Needed for Photosynthesis

Investigating Photosynthesis

Investigating the Rate of Photosynthesis

Ecosystems, Nutrient Cycles & Human Impact on the Environment

Food Chains & Food Webs

Energy Transfers

Pyramids of Numbers & Biomass

Human Impact on the Environment

Detecting Pollution

Heavy Metal Pollution

Water Pollution

Variation, Homeostasis & Micro-organisms

Classification & Biodiversity

Classification of Organisms

Morphological & Behavioural Adaptations

Interactions Between Population & Environment

Biodiversity

Sampling for Abundance and Distribution

Capture/recapture Techniques

Investigating Species Distribution & Abundance

Biological Control Agents

Cell Division & Stem Cells

Chromosomes

Types of Cell Division

Uncontrolled Mitosis & Cancer

Stem Cells

DNA & Inheritance

DNA Structure

Role of the Triplet Code

Process of Genetic Profiling

Uses of Genetic Profiling

DNA Profiling

Genes, Alleles & Other Key Terms in Genetics

Single Gene Inheritance

Polygenic Inheritance

Sex Determination

Artificial Gene Transfer

Variation & Evolution

Variation in Organisms

Types of Variation

Sexual Reproduction

Mutations

Natural Selection & Evolution

Evolution in Action

Understanding the Human Genome

Response & Regulation

Sense Organs

The Nervous System

Reflexes

Investigating Factors Affecting Reaction Time

Homeostasis

Hormones as Chemical Messengers

Maintaining Blood Glucose Levels

Diabetes

Temperature Regulation

Negative Feedback Mechanisms

Lifestyle Choices & Medical Conditions

Disease, Defence & Treatment

Types of Micro-organisms

Pathogens

Mechanisms of Defence

Antigens

Do Vaccines Protect you from Disease?

How do Vaccines Work?

Memory Cells & Immune Response

Antibiotics & Disease

Preventing Medical Conditions

New Medicines

Exam boards

• WJEC GCSE Science (Double Award): Chemistry
• WJEC GCSE Science (Double Award): Physics
• Edexcel GCSE Combined Science: Biology
• Edexcel GCSE Combined Science: Chemistry
• Edexcel GCSE Combined Science: Physics

Study tools

• WJEC GCSE Science (Double Award) · Past Papers

Related links

• GCSE Science · Revision Notes
• GCSE Science · Exam Questions
• GCSE Science · Past Papers