WorksheetsTopic 13: Coenzymes Decarboxylation
Total questions: 10
Worksheet time: 6mins
Which coenzyme is involved in the non-oxidative decarboxylation of α-keto carboxylates?
Thiamin Pyrophosphate (TPP)
Pyridoxal Phosphate
Biotin
Coenzyme A
What type of reaction is associated with Pyridoxal Phosphate?
Methylation
Phosphorylation
Decarboxylation
Hydroxylation
Which reaction is NOT associated with Thiamin Pyrophosphate (TPP)?
Retro-aldol condensation
Racemization
Non-oxidative decarboxylation
Oxidative decarboxylation
Which of the following is a reaction type associated with Thiamin Pyrophosphate (TPP)?
Hydration
Carboxylation
Retro-aldol and aldol condensations
Transamination
Which coenzyme is primarily involved in transamination reactions?
Pyridoxal Phosphate
Thiamin Pyrophosphate (TPP)
Coenzyme A
Biotin
What type of reaction is NOT typically associated with Pyridoxal Phosphate?
Racemization
Transamination
Decarboxylation
Carboxylation
Which of the following vitamins is a cofactor for the enzyme responsible for the carboxylation of pyruvate to form oxaloacetate?
Pantothenic acid (B5)
Niacin (B3)
Thiamine (B1)
Riboflavin (B2)
Lipoic acid is a coenzyme for:
pyruvate hydroxylase
pyruvate carboxylase
pyruvate dehydrogenase
alpha-ketoglutarate dehydrogenase
citrate lyase
Which of the following reactions involves the coenzyme Thiamin Pyrophosphate (TPP)?
non-oxidative decarboxylation
of α-keto carboxylates
oxidative decarboxylation
decarboxylation of amino acids
retro aldol and aldol
condensations
Select the incorrect structure which is not part of the transimination mechanism catalyzed by pyridoxal phosphate (may not be shown in the correct order).
