SC BIOL 244 - Ch. 24-Vitamins (2 pages)

Unformatted text preview:

BIOL 244 Chapter 24 Vitamins Lecture 6 September 9 Vitamins organic compounds necessary in a very small amount for body structure and function Sources Green plants Fruits Eggs Diary products Water soluble vitamins Vitamin B Vitamin B1 Thiamin acts as a coenzyme Vitamin B2 Riboflavin necessary components for coenzymes Vitamin B3 Niacin necessary component for coenzymes Vitamin B6 Pantothenic acid necessary component for coenzymes Vitamin B9 Folic acid necessary for nucleic acid and amino acid metabolism and neural tube formation in the fetus Vitamin B12 Pantothenic acids necessary for nucleic acid metabolism and erythrocye RBCs formation Vitamin C Folic acid required for collagen hair skin nails synthesis and helps in iron absorption Take with orange juice because it helps iron be absorbed Too much can cause kidney disease Biotin acts as a coenzyme Helps maintain proper growth of hair nail healthy skin Coenzymes organic molecules and cofactors inorganic molecules Fat soluble vitamins Vitamin A necessary for night vision and required for synthesization of rhodopsin pigment for black and white vision Acts as an antioxidant Deficiency can cause night blindness Vitamin D necessary for calcium and phosphorus absorption and utilization bone health muscle contraction and kidney function Controls some gene activities 3 gene pool 700 900 genes Can be produced in the body skin with the help of sunlight Vitamin E acts as an antioxidant Vitamin K necessary for blood clot formation Produced in the body with the help of colon bacteria Overdose of vitamins is not healthy