Ellis L. Reinherz is in the Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, USA, and at the Dana-Farber Cancer Institute, Boston, USA. Immune cells called T cells have ...

The cell nucleus is considered to be the control center of vital cellular processes, but its material properties continue to puzzle scientists. An international research team has now developed a new ...

While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions (Figure 1). In prokaryotic cells, DNA bundles together in a region called the nucleoid. Primitive ...

Cells are the building blocks of all living organisms. Test your knowledge of the structure of cells in preparation for your National 5 Biology exam. Looking for more cell structure revision? There is ...

Bacteria are amongst the simplest of organisms – they are made of single cells. Their cell structure is simpler than the cells of animals, plants and fungi.

CBSE Class 11 Biology Important Diagrams: The study of biology is impossible without the use of flowcharts and diagrams. These illustrations make it easier for us to comprehend the complex ideas of ...

A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

A new structure in human cells has been discovered. The structure is a new type of protein complex that the cell uses to attach to its surroundings and proves to play a key part in cell division. A ...

THE beta cells of the islands of Langerhans have a dominant role in the regulation of normal carbohydrate metabolism. These cells serve as depots of insulin reserve stored within their cytoplasm in ...