Multiple choice Which of the following processes is a substrate level phosphorylation? Transfer of phosphoryl group from substrate to ADP Transfer of phosphoryl group from ATP to substrate Addition of phosphoryl group to nucleoside to form nucleotide Only 1 and 2 All of the above Reveal answer Fill a bubble to check yourself A Correct answer Explanation Transfer of phosphoryl group from substrate to ADP (Adenosine di nucleotide) result the formation of ATP (Adenosine trinucleotide) is called substrate level phosphorylation.