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Populations

What’s the first thing that pops into your mind when you read the word population? Most likely it’s the ever-increasing human population on earth. The term population isn’t just used to describe humans; it includes other animals, plants and microbes too. These resources will help you learn more about how...

Health and Climate Change

Published by the Wellcome Trust, the 'Big Picture' explores issues around biology and medicine. The Earth's climate is changing ever faster, and human activities play a role in speeding up this change.

The Earth’s climate is changing. In fact, it has always been changing. What is different now is the speed...

Genes, Genomes and Health

Published by the Wellcome Trust, the 'Big Picture' explores issues around biology and medicine. In recent years, great progress has been made in genome sequencing and understanding the huge amount of data produced. Our genes play a key part in making us who we are, but how can science help us understand our genetic...

Drugs

Published by the Wellcome Trust, the 'Big Picture' explores issues around biology and medicine. While providing immense benefits, drugs are not the perfect solution.

They only work on a proportion of patients, sometimes they harm us, and we're not very good at taking them as we should. For some diseases,...

Plants

This issue of Big Picture provides lots of interesting information about flowering plants and their uses. 

The plant hormones animation explores the action of indole-3-acetic acid (IAA) and shows how scientists used experimental evidence to explain the role of auxins in a phototrophic response.

The...

Immune System

This resource looks at several aspects of the immune system including: • The non-specific immune response • Specific immune response and antigen recognition • T cells and B cells • Autoimmune disease and allergic responses • Monoclonal antibodies • Long term immunity and vaccination There is a section which...

Number Crunching

This edition of Big Picture entitled Number Crunching, has a number of articles explaining how statistics help us understand the world.

Vital statistics contains a series of thought provoking numbers from around the world such as the number of photos on Facebook and the number of worldwide...

Inside the Brain

These resources from the Wellcome Trust explore how imaging research has changed the way we look inside one of our most fascinating organs, the brain. The accompanying lesson ideas provides related activities and ideas for investigations or extended project qualification (EPQ). There is useful background...

Enzymes are Proteins

Enzymes are proteins that speed up the reactions by acting as catalysts. They increase the rate of reaction without being consumed or permanently altered by themselves. In Greek enzymes are divided into sections “En” which means “in” and second part is “zyme” means living. The study of enzymes is known as...

Food Technology - Careers

A Catalyst article about careers in the food industry. The food and drink industries are part of a chain linking farming and growing through to food processing, manufacture and finally to the sale of food in supermarkets and restaurants. This article describes some of the many career areas in food technology...

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