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Chromosomes in metaphase

An image representing human chromosomes in metaphase. Atomic Force Microscope image of human chromosomes in a metaphase spread.

This resource is part of the Post 16 genetics and ...

Mars Lander

Presentation about colonising mars - landing and how live there. Group activity to make Mars Lander to safety land egg for height. In addition activity to make parachutes for Mars Lander

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...

Inside the brain poster (colour/black and white)

Our brains contain some 86 billion neurons, or nerve cells, which communicate via junctions called synapses. At these junctions, neurons are just 20 nm apart. Inside each of our heads you’ll find one brain, billions of neurons and trillions of synapses which...

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...

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...

How To Know Your Thread Is Not Good Anymore

Definitely, the thread is not something like the metal that will last forever in your closet. You should replace it once it is too old to use or when it is about to end. Many sewing beginners must be thinking that their best basic sewing...

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...

Electrophoresis gel with annotation

Di-deoxy sequencing is a way to determine the order of bases (A,C,G and T) in a piece of DNA. A set of 4 lanes (one for each base) is needed to sequence any given piece of DNA. Wherever a black
band appears in a particular lane that base is present. By reading off the order of bands across the four lanes the...

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