Which of the following is (are)an advantage(s)of protein phosphorylation in regards to biochemical signaling?
(I)Phosphorylation is rapid and specific.
(II)Phosphorylation is enzymatically reversible.
(III)Phosphorylation can be amplified by cascade systems.
(IV)Phosphorylation results in covalent modification of enzymes.
A)I,II,III,IV
B)II,III,IV
C)II,III
D)I,II
E)III only

Question

Quizplus · Accepted Answer

All of the choices are advantages of protein phosphorylation in regards to biochemical signaling.

(I) Phosphorylation is rapid and specific - it allows for quick and precise signaling within the cell. 
(II) Phosphorylation is enzymatically reversible - this allows for tight regulation and flexibility in signaling pathways. 
(III) Phosphorylation can be amplified by cascade systems - this allows for a large response to a small initial signal. 
(IV) Phosphorylation results in covalent modification of enzymes - this can alter the activity, localization, or interacting partners of the protein, allowing it to carry out different functions in the cell.

Which of the Following Is (Are)an Advantage(s)of Protein Phosphorylation in Regards