One Carbon Metabolism

Question 1

The four nutritionally essential gas fries involved in the transfer of one carbon unit at diff oxidation states are ;

Answer 1

1) biotin
2) tetrahydrofolate (THF)
3) S-adeonsylmethionine
4) vitamin b12

Question 2

_ plays a key role in many carboxylation reactions as specialized carrier of one carbon unit in its most oxidized state, CO2

Answer 2

Biotin

Question 3

Biotin involves two discrete steps which are ;

Answer 3

1) active formation of carboxyl biotinyl enzymes
2) transfer of carboxyl unit to an appropriate acceptor substrate (catalysed by a transcarboxylase)