Essential Biochemistry - Protein Metabolism (Section 12)
1
In the metabolism of phenylalanine and tyrosine, what enzyme is responsible for catalyzing the reaction of phenylpyruvate to form phenylketones?
2
Which of the following is NOT a function of glutamine?
3
Where does the urea cycle primarily take place in the cell?
4
Which of the following does not take part in the human urea cycle?
5
What is the main function of the enzyme pepsin?
6
Which substance activates pepsinogen?
7
Where does the digestion of proteins begin?
8
What is the role of glutamine in the liver?
9
Which enzyme directly activates trypsinogen?
10
What is the primary role of the enzyme, tryptophan 2,3-dioxygenase?
Antwort(B)
Catabolism of tryptophan to kynurenine
