Cellular nutrients come in many forms, including sugars and fats. In order to provide a cell with energy, these molecules have to pass across the cell membrane, which functions as a barrier ...

That stubborn belly fat that appears in your 40s isn't just from diet or lack of exercise. Scientists have uncovered a ...

As workhorses of the cell ... similar functions within the cell. Proteins from the same family also often have long stretches of similar amino acid sequences within their primary structure.

Proteins are essential for a wide range of cellular functions-as enzymes ... secretion of ceramide (Cer), a fat molecule that plays a major role in cell structure, signaling, and stress response.