Anatomy

Vitamin B12 "What is Vitamin B12? A detailed question and answers guide" Question 1. Vitamin B12. Answer: It is cyanocobalamine Coenzyme forms: 5'- Deoxyadenosyl cobalamin Methylcobalamin Functions: Synthesis of methionine from homocysteine Vitamin B12 is used as Methylcobalamin in this reaction Isomerization of methylmalonic CoA to … [Read more...] about Vitamin B12

Thyroxine & Vitamin D "How does vitamin D maintain bone health? FAQ explained" Question 1. Synthesis of thyroxine  Answer:  Thyroxine is a thyroid hormone It is synthesized from the tyrosine residues of the protein thyroglobulin & activated iodine The tyrosine of thyroglobulin is first iodinated at position 3 to form monoiodotyrosine Next, it is … [Read more...] about Thyroxine & Vitamin D

Folic Acid Question 1. Give an account of the chemistry, sources, and dietary functions of folic acid. Answer: Folic acid: Chemistry Consists of Pteridine ring p-amino benzoic ring (PABA) Glutamic acid Has one glutamic acid residue known as pleural-glutamic acid The active form is tetrahydrofolate Dihydrofolate reductase → folic acid → … [Read more...] about Folic Acid

Fat Soluble Vitamins Question 1. Fat-soluble vitamins Answer: Vitamins A, D, E & K are fat-soluble vitamins Properties: Their availability in diet, absorption & transport is associated with fat They are soluble in fats & oils & in fat solvents They are stored in the liver & adipose tissues They are not readily excreted in urine They … [Read more...] about Fat Soluble Vitamins

Riboflavin "What is riboflavin? A detailed question and answers guide" Question 1. Vitamin C  Answer: It is water soluble vitamin It plays an important role in human health & disease It is readily absorbed by the intestines & excreted in urine About 60-70 mg of vitamin C is required per day Citrus fruits are main sources of vitamin C Its … [Read more...] about Riboflavin