2013 Free-Response Questions. About the College Board. The College Board is a mission-driven not-for-profit organization that connects students to college success and opportunity. Founded in 1900, the College Board was created to expand access to higher education. Today, the membership association is.
For the use of creatine to increase athletic performance, see Creatine supplements. Not to be confused with creatinine. Creatine (/ËkriËÉtiËn/ or /ËkriËÉtÉªn/) is a nitrogenous organic acid that occurs naturally in vertebrates and helps to supply energy to all cells in the body, primarily muscle.arly analysis showed that human blood is approximately 1% creatine, and the highest concentrations are found in animal blood, brain (0.14%), muscle (0.50%), and testes (0.18%).
Creatine is a natural derivate of an amino acid manufactured (synthesized) in the liver, pancreas, and kidneys from glycine, arginine and methione. From there, it is transported via the bloodstream primarily to muscle tissue.It is stored there as creatine and phosphocreatine (when it binds to a phosphate).More than 90% of the body's creatine is stored in muscle tissue with minor amounts also present in the heart, brain and, in males, the testes.A typical adult will store about 120 grams. In addition to the creatine th e body manufactures as described above, it can be ingested directly.t is stored there as creatine and phosphocreatine (when it binds to a phosphate). More than 90% of the body's creatine is stored in muscle tissue with minor amounts also present in the heart, brain and, in males, the testes. A typical adult will store about 120 grams.