Protein or the physical region of the protein that participates in chemical catalysis. In solution proteins also undergo variation in structure through thermal vibration and the collision with other molecules. Proteins can be informally divided into three main classes, which correlate with typical tertiary structures: globular proteins, fibrous proteins, and membrane proteins. Almost all globular proteins are soluble and many are enzymes. Fibrous proteins are often structural, such as collagen, the major component of connective tissue, or keratin, the protein component of hair and nails. Membrane proteins often serve as receptors or provide channels for polar or charged molecules to pass
Gel nails are still a very recent addition to the nail industry first being introduced in the 1980s. The most popular acrylic nail service is the pink and white which refers to the use of pink colored acrylic and a white acrylic powder to create a long-lasting French manicure look. Just as with gel nails, acrylic nail extensions can be created using forms to create sculpted nails or tips. Forms are special stickers that are placed at the end of each finger, under the finger nail, and secured in place so that wet acrylic can be sculpted into a nail extension at