Vitamins and
Coenzymes
Meroka A
Biochemistry Department,
KEMU
, Outline
• Classification of vitamins
• Structure of vitamins
• Features and functions of vitamins
as coenzyme
, Introduction
• Some enzymes require cofactors for activity
-- Essential ions
mostly metal ions: Zn2+,Fe2+
-- Coenzymes (organic compounds)
Vitamin-derived coenzymes-derivatives of
vitamins.
, Vitamins
Definition ： Vitamins are organic
nutrients that are required in small
quantities for a variety of
biochemical functions and which,
generally, cannot be synthesized by
the body and must therefore be
supplied by the diet.
Coenzymes
Meroka A
Biochemistry Department,
KEMU
, Outline
• Classification of vitamins
• Structure of vitamins
• Features and functions of vitamins
as coenzyme
, Introduction
• Some enzymes require cofactors for activity
-- Essential ions
mostly metal ions: Zn2+,Fe2+
-- Coenzymes (organic compounds)
Vitamin-derived coenzymes-derivatives of
vitamins.
, Vitamins
Definition ： Vitamins are organic
nutrients that are required in small
quantities for a variety of
biochemical functions and which,
generally, cannot be synthesized by
the body and must therefore be
supplied by the diet.
