Globular proteins are a type of protein that are generally spherical in shape. They are soluble in water and play crucial roles in various biological functions, including enzyme activity, transport, and immune responses. Examples of globular proteins include hemoglobin, which carries oxygen in the blood, and enzymes, which catalyze biochemical reactions. These proteins are composed of long chains of amino acids that fold into specific three-dimensional structures. The unique folding allows globular proteins to interact with other molecules effectively, making them essential for processes such as metabolism and cell signaling. Their structure is stabilized by various interactions, including hydrogen bonds and hydrophobic interactions.