In a single cell, around 1,000 RNAs, proteins and other molecules can be exchanged between the nucleus and the cytoplasm each second 2. This exchange is regulated by a large protein complex called ...

Can eating fat be good for us? Some fatty acid molecules actually play a crucial role in maintaining our health and cellular functions. By the early twentieth century, scientists and doctors ...

This takes place when molecules diffuse across the cell membrane by travelling through specific transport proteins. It occurs down a concentration gradient - molecules move from an area of high to ...

While the presence of these molecules is not proof of ancient life on Mars, scientists say it shows we could detect chemical signatures of past life, if it ever existed. Scientists have announced ...