Nitrogen-fixation is inhibited by oxygen. However, in aerobic nitrogen-fixing bacteria, nitrogen is fixed in the presence of oxygen. Nitrogenase in such organisms is protected by which one of the following mechanisms?

Question

Nitrogen-fixation is inhibited by oxygen. However, in aerobic nitrogen-fixing bacteria, nitrogen is fixed in the presence of oxygen. Nitrogenase in such organisms is protected by which one of the following mechanisms? (A) Channelising oxygen to form ozone (B) Removal of oxygen by metabolic activity (C) Utilising oxygen for membrane remodelling (D) Utilising oxygen for synthesis of pentapeptide chain in peptidoglycan

Tardigrade Admin · Accepted Answer

Nitrogenases are enzymes used by some organisms to fix atmospheric nitrogen gas ( N 2). It is sensitive to oxygen thus is protected by removal of excess oxygen by organisms in their various metabolic activities.

Q. Nitrogen-fixation is inhibited by oxygen. However, in aerobic nitrogen-fixing bacteria, nitrogen is fixed in the presence of oxygen. Nitrogenase in such organisms is protected by which one of the following mechanisms?

Channelising oxygen to form ozone

Removal of oxygen by metabolic activity

Utilising oxygen for membrane remodelling

Utilising oxygen for synthesis of pentapeptide chain in peptidoglycan

Nitrogenases are enzymes used by some organisms to fix atmospheric nitrogen gas $(N_{2})$ . It is sensitive to oxygen thus is protected by removal of excess oxygen by organisms in their various metabolic activities.

Q. Nitrogen-fixation is inhibited by oxygen. However, in aerobic nitrogen-fixing bacteria, nitrogen is fixed in the presence of oxygen. Nitrogenase in such organisms is protected by which one of the following mechanisms?

Channelising oxygen to form ozone

Removal of oxygen by metabolic activity

Utilising oxygen for membrane remodelling

Utilising oxygen for synthesis of pentapeptide chain in peptidoglycan

Nitrogenases are enzymes used by some organisms to fix atmospheric nitrogen gas (N2​). It is sensitive to oxygen thus is protected by removal of excess oxygen by organisms in their various metabolic activities.

Nitrogenases are enzymes used by some organisms to fix atmospheric nitrogen gas $(N_{2})$ . It is sensitive to oxygen thus is protected by removal of excess oxygen by organisms in their various metabolic activities.