Collagen (fiber, molecule, and Amino acid sequence). Molecular structure. Three polypeptides coil to form tropocollagen. Tropocollagens bind together to form a fibril. Many fibrils bind together form a collagen fibre. Vector diagram for educational, Sweatshirt #220013056
Get ready for cooler weather with this classic crew neck sweatshirt. This piece is crafted with pre-shrunk fabric, a 1x1 rib-knit collar with spandex, air-jet spun yarn for softness and reduced pilling, and double-needle stitching around the collar, shoulders, armholes, cuffs, and hem. The garment is quarter-turned to prevent a crease down the middle.