STPM Biology - chapter 1: Reision essay question 21

21. Describe the importance of water soluble vitamins in human metabolism. [7]

Answer:

Water soluble vitamins are vitamin B complex and vitamin C/ascorbic acid

Vitamin C/ascorbic acid :
. anti-scurvy
. coenzyme
. antioxidant/detoxification

Vitamin B
. B1/thiamine - helps release energy from carbohydrate/decarboxylation
. B2/riboflavin - component of FAD and FMN/ coenzyme
. B3/niacin/nicotinic acid - component of NAD+ and NADP+
. B5/panthotenic acid - component of coenzyme A
. B6/pyridoxine - coenzyme in amino acid/protein metabolism//transamination
. B12/cobalamine/cyanocobalamine - coenzyme in nucleic acid metabolism//maturation of red blood cell
. Biotin - coenzyme in metabolism

Folic acid/folate - coenzyme in nucleic acid and protein metabolism//formation of red blood cell

Assignment submitted by H. L., Lim, H.P., Tan, S. Y., Tan, H.S., Teow, A.M., Chia 2011/2012 (IBM)