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GCSEScienceWJECScience (Double Award)BiologyRevision Notes

WJEC GCSE Science (Double Award): Biology Revision Notes

Exam code: 3430

Concise resources for the WJEC GCSE Science (Double Award): Biology course.

Cells, Organ Systems & Ecosystems

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

Enzyme-controlled Reactions

Factors Affecting Enzyme Activity

Investigating Factors Affecting Enzyme Action

Aerobic Respiration

Anaerobic Respiration

Human Respiratory System

The Bell Jar Model

Adaptations of the Alveolus

Comparing Inspired & Expired Air

The Effects of Smoking

The Need for Digestion

Enzymes in Digestion

The Human Digestive System

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

The Human Heart

The Human Circulatory System

Capillary Networks

Cardiovascular Disease

Conditions Needed for Photosynthesis

Investigating Photosynthesis

Investigating the Rate of Photosynthesis

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 of Organisms

Morphological & Behavioural Adaptations

Interactions Between Population & Environment

Sampling for Abundance and Distribution

Capture/recapture Techniques

Investigating Species Distribution & Abundance

Biological Control Agents

Types of Cell Division

Uncontrolled Mitosis & Cancer

Role of the Triplet Code

Process of Genetic Profiling

Uses of Genetic Profiling

Genes, Alleles & Other Key Terms in Genetics

Single Gene Inheritance

Polygenic Inheritance

Sex Determination

Artificial Gene Transfer

Variation in Organisms

Types of Variation

Sexual Reproduction

Natural Selection & Evolution

Evolution in Action

Understanding the Human Genome

The Nervous System

Investigating Factors Affecting Reaction Time

Hormones as Chemical Messengers

Maintaining Blood Glucose Levels

Temperature Regulation

Negative Feedback Mechanisms

Lifestyle Choices & Medical Conditions

Types of Micro-organisms

Mechanisms of Defence

Do Vaccines Protect you from Disease?

How do Vaccines Work?

Memory Cells & Immune Response

Antibiotics & Disease

Preventing Medical Conditions

Exam boards

Study tools

WJEC GCSE Science (Double Award) · Past Papers

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