One_of_the_following_statements_about_the_control_of_enzyme_activity_by_phosphorylation_is_correct

Phosphorylation of an enzyme occurs only at specific tyrosine residues

Phosphorylation of an enzyme results in conformational change

Phosphorylation of an enzyme is carried out by phosphoprotein phosphatases

Enzyme control by phosphorylation is irreversible

One_of_the_following_statements_about_the_control_of_enzyme_activity_b

1.	One_of_the_following_statements_about_the_control_of_enzyme_activity_by_phosphorylation_is_correct
A.	Phosphorylation of an enzyme results in conformational change
B.	Phosphorylation of an enzyme occurs only at specific tyrosine residues
C.	Phosphorylation of an enzyme is carried out by phosphoprotein phosphatases
D.	Enzyme control by phosphorylation is irreversible
Answer» B. Phosphorylation of an enzyme occurs only at specific tyrosine residues