Plant cells without walls, known as protoplasts, are very fragile, and it has been difficult to keep them alive under a ...

He looks and acts like a typical teenager, but at 17, Desmond Pullen has had more close calls than most people can claim in a lifetime agonizing headaches, collapsed lungs, several strokes and ...

The genetic code of all life on Earth is made from DNA. Proteins like enzymes and hormones are made during protein synthesis. Enzymes are biological catalysts which speed up chemical reactions.

Learn all about cells with these GCSE biology revision videos. Revise how cells are structured, how they divide and how we can see them. We'll also explain the main differences between optical ...