KVPY SX SB Exam 19-Nov-2017 Question Paper

Question : 76 of 120

Marks: +1, -0

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 o the following mechanisms

channelizing oxygen to form ozone
removal of oxygen by metabolic activity
utilizing oxygen for membrane remodelling
utilizing oxygen for synthesis of pentapeptide chain in peptidoglycan

Validate

Solution:

Excess

O_2

is used for metabolic activity.

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