Weblinks and videos for use with 7691 – Stretch & Challenge Articles for OCR A GCSE Biology Pack 1

Microscopes – from Spectacles to Single Atoms

The Very Hungry Eukaryote!

The Life and Times of Good Bacteria

Cracking the Code: Learning from DNA

Digestive Enzymes, Clean Clothes and Smelly Cheese

The Oxygen Apocalypse!

Lactic Acid – the Enemy of Athletes?

The Life Osmotic

Stem Cells – Growing the Future of Medicine

Catching a Breath

Having a Change of Heart

Diseases of Blood: Sickle-cell Disease

Carnivores in the Plant World

Sights for Sore Eyes

The Male Pill? Approaches to Male Contraceptive Agents

Sweet Dream Monotremes – Platypus Venom and Diabetes