Question

nitrogen fixing bacteria cannot fix N2 in presence of ________
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Light
Please answer with full explanation.
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Answer 1

Answer:

Your answer is option (a)Oxygen.

Explanation:

Nitrogen fixing bacteria generally Rhizobium,

fixes the atmospheric nitrogen into simpler nitrates inside the soil.

Under the soil there is absence of oxygen.

That means the bacteria needs such an environment where there is the absence if oxygen.

Therefore the answer is option (a)

Answer 2

ᴀɴsᴡᴇʀ:- ᴏxʏɢᴇɴ

ɴɪᴛʀᴏɢᴇɴᴀsᴇs ᴀʀᴇ ʀᴀᴘɪᴅʟʏ ᴅᴇɢʀᴀᴅᴇᴅ ʙʏ ᴏxʏɢᴇɴ. ғᴏʀ ᴛʜɪs ʀᴇᴀsᴏɴ, ᴍᴀɴʏ ʙᴀᴄᴛᴇʀɪᴀ ᴄᴇᴀsᴇ ᴘʀᴏᴅᴜᴄᴛɪᴏɴ ᴏғ ᴛʜᴇ ᴇɴᴢʏᴍᴇ ɪɴ ᴛʜᴇ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ᴏxʏɢᴇɴ. ᴍᴀɴʏ ɴɪᴛʀᴏɢᴇɴ-ғɪxɪɴɢ ᴏʀɢᴀɴɪsᴍs ᴇxɪsᴛ ᴏɴʟʏ ɪɴ ᴀɴᴀᴇʀᴏʙɪᴄ ᴄᴏɴᴅɪᴛɪᴏɴs, ʀᴇsᴘɪʀɪɴɢ ᴛᴏ ᴅʀᴀᴡ ᴅᴏᴡɴ ᴏxʏɢᴇɴ ʟᴇᴠᴇʟs, ᴏʀ ʙɪɴᴅɪɴɢ ᴛʜᴇ ᴏxʏɢᴇɴ ᴡɪᴛʜ ᴀ ᴘʀᴏᴛᴇɪɴ sᴜᴄʜ ᴀs ʟᴇɢʜᴇᴍᴏɢʟᴏʙɪɴ.