The activity of bacterial glutamine synthetase isI. inhibited by glutamineII. inhibited by adenylylationIII. activated by uridylylation of the PII subunit of adenylyltransferaseIV. activated by alpha-ketoglutarate

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.

the backbone of the dna and rna compound is sugar phosphate.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.