Answer: Option II. inhibited by adenylylation.
Option III. activated by uridylylation of the PII subunit of adenylyltransferase.
Explanation:
Glutamine syntherase is an enzyme that is found in the mitochondria. Glutamine syntherase acts as a catalyst in the reaction that produces glutamine from glutamate and ammonia.
Since the other answer got deleted, i'll just answer it for you.
a sinoatrial node is the main pacemaker that begins each heartbeat located in the junctions of superior vena cava and the right atrium. It signals from the node that spread through the atria and determines the heart rates.
B) False, Visceral Fat is more dangerous than Subcutaneous Fat that lies just under the skin around the belly, thighs and rear.
Answer: A bond in which electrons are shared.