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NEET UG BIOLOGY MCQ: MINERAL NUTRITION
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Assertion: Nitrogen-fixing enzyme in legume root nodules functions at low oxygen concentration.
Reason: Low oxygen concentration is provided by leghaemoglobin.
Reason: Low oxygen concentration is provided by leghaemoglobin.
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Correct option: A
If both Assertion and Reason are correct and Reason is a correct explanation of Assertion
Option A (If both Assertion and Reason are correct and Reason is a correct explanation of Assertion) is correct because nitrogenase functions at low oxygen concentrations, and leghaemoglobin provides this condition.
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Toxicity of prevent / affect uptake of
Select the match ones.
I Nitrosomonas – Nitrite to nitrate
II Thiobacillus - Denitrification
III Nostoc - Free-living nitrogen-fixer
IV Azotobacter - Anaerobic nitrogen-fixer Deficiency of which to the following can cause yellowing of intravenous regions of leaves? Which among the following are used as media for hydroponics? Elements mainly involved in cell membrane synthesis, in normal functioning of the cell membrane are The major characteristics of colloids is/are
I Nitrosomonas – Nitrite to nitrate
II Thiobacillus - Denitrification
III Nostoc - Free-living nitrogen-fixer
IV Azotobacter - Anaerobic nitrogen-fixer Deficiency of which to the following can cause yellowing of intravenous regions of leaves? Which among the following are used as media for hydroponics? Elements mainly involved in cell membrane synthesis, in normal functioning of the cell membrane are The major characteristics of colloids is/are