Biochem

Question 1

Deficiency of Phenylalanine hydroxylase

Answer 1

PKU

Question 2

Coenzymes that transfer acyl groups and active aldehydes

Answer 2

TPP, Lipoic acid, Coenzyme A

Question 3

Coenzyme for amino group transfer

Answer 3

Pyridoxal Phosphate

Question 4

Activation and transfer of CO2

Answer 4

Biocytin

Question 5

Transfer of one carbon compounds

Answer 5

Tetrahydrofolate

Question 6

Transfer for Alkyl group

Answer 6

Cobamide B12

Question 7

Synthesized from Biopterin

Answer 7

Tetrahydrobiopterin

Question 8

Tetrahydrobiopterin involved in hydroxylation reactions catalyzed by

Answer 8

Phenylalanine hydroxylase
Tryptophan hydroxylase

Question 9

Vuygyug

Answer 9

Guygyug

Question 10

Tumor of adrenal medulla

Answer 10

Pheochromocytoma

Question 11

Pathology of Pheochromocytoma

Answer 11

Salt and pepper chromatin

Question 12

MC source of extra adrenal Pheochromocytoma

Answer 12

Organ of Zuckerkandl

Question 13

3 enzymes catalyzed reactions that require TPP

Answer 13

Pyruvic acid decarboxylase
Transketolase
Pyruvate dehydrogenase

Question 14

Pyridoxal Phosphate involved in Amino Acid Reactions

Answer 14

Transamination
Decarboxylation
Racemization

Question 15

Inhibited by Isoniazid

Answer 15

Pyridoxal Phosphate

Question 16

Tetrahydrofolic acid: inhibited by folate antagonists e.g

Answer 16

Methotrexate, sulfonamides