Vitamin amino acids. Most vitamins are not single molecules, but groups of related molecules called vitamers. For example, vitamin E consists of four tocopherols and four tocotrienols. The thirteen vitamins required by human metabolism are: vitamin A (retinols and carotenoids), vitamin B (thiamine), vitamin B (riboflavin), vitamin B (niacin), vitamin B (pantothenic acid), vitamin B (pyridoxine), vitamin B (biotin), vitamin B (folic acid or folate), vitamin B (cobalamins), vitamin C (ascorbic acid), vitamin D (calciferols), vitamin E (tocopherols and tocotrienols), and vitamin K (quinones). Vitamins have diverse biochemical functions. Some forms of vitamin A function as regulators of cell and tissue
Say Kids What Time Is It? 2 minutes 22 seconds long, cutting out roughly 2 minutes of the original track. A1 "Say Kids What Time Is It?" B1 untitled B2 untitled B3 untitled B4 untitled A "Say Kids (What Time Is It?)" B1 untitled (instrumental cut-up) B2 untitled (instrumental cut-up) B3 untitled (samples for scratching) B4 untitled (samples for scratching) A "Find a Way" B1 "Say Kids" B2 "Untitled (Breaks)" B3 "Untitled (Breaks)" Say Kids What Time Is It? "Say Kids What Time Is It?" is the debut single of British dance music duo Coldcut. It is renowned as one of the first tracks to be