1.

    For the existence of nitrogen, how many nitrogen atoms are required?

    A

    Three

    B

    Two

    C

    Four

    D

    One

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :chemical bonding, diatomic molecules

    Related Questions

    1.

    The process of conversion of soil nitrates into free N2{{\rm{N}}_{\rm{2}}} is called (I) and is carried out by bacteria (II)

    A

    Nitrogen fixation and Nitrogen-fixing bacteria

    B

    Nitrification and Nitrifying bacteria

    C

    Denitrification and Denitrifying Bacteria

    D

    Ammonification and Ammonifying bacteria

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Denitrification, Nitrogen Cycle, Bacterial Metabolism

    2.

    Identify the incorrect one for catalytic converters.

    A

    Equipped with costly heavy metals

    B

    Convert CO and nitrogen oxides to CO2 andH2OC{O_2}\,and{\rm{ }}{H_2}O

    C

    Gets inactivated in presence of leaded petrol or diesel

    D

    Used in automobiles to reduce air pollution

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :catalytic converters, air pollution, chemical reactions

    3.

    Which of the following is a free living aerobic non – photosynthetic nitrogen fixer?

    A

    Rhizobium

    B

    Azotobacter

    C

    Azo spirillum

    D

    Nostoc

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Nitrogen fixation, Aerobic bacteria, Photosynthesis, Free-living bacteria, Bacterial Classification

    4.

    Nitrogen is present in the soil in the form of I. Nitrates II. Ammonial salts III. Nitrite IV. None of these

    A

    I and II

    B

    I, II and III

    C

    III and IV

    D

    IV only

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Nitrogen cycle, Soil chemistry, Inorganic nitrogen compounds

    5.

    Find out odd one form the following options by considering its role in nitrogen cycle.

    A

    Clostridium

    B

    Nostoc

    C

    Pseudomonas

    D

    Rhizobium

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Nitrogen cycle, Nitrogen fixation, Denitrification

    6.

    Select the match ones.I Nitrosomonas – Nitrite to nitrateII Thiobacillus - DenitrificationIII Nostoc - Free-living nitrogen-fixerIV Azotobacter - Anaerobic nitrogen-fixer

    A

    I and II

    B

    III and IV

    C

    II and III

    D

    II and IV

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Nitrosomonas, Nitrite, Nitrate, Thiobacillus, Denitrification, Nostoc, Nitrogen fixation, Azotobacter, Aerobic, Anaerobic

    7.

    Nitrosomonas and Nitrococcus are involved in

    A

    oxidation of nitrates into nitrites

    B

    reduction of nitrates to nitrites

    C

    oxidation of ammonia into nitrites

    D

    reduction of nitrates to ammonia

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Nitrogen cycle, oxidation, reduction, Nitrosomonas, Nitrococcus

    8.

    Number of ATP required for the formation of 4NH34N{H_3} molecules via symbiotic nitrogen fixation is

    A

    16

    B

    32

    C

    8

    D

    4

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :symbiotic nitrogen fixation, ATP, stoichiometry

    9.

    Which of the given prokaryotes fixes nitrogen symbiotically as well as in free living state?

    A

    Rhizobium

    B

    Thiobacillus

    C

    Anabaena

    D

    Azotobacter

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Nitrogen fixation, Prokaryotes, Symbiosis, Free-living organisms

    10.

    Which of the following elements play a major role in nitrogen metabolism by activating the enzyme, nitrogenase?

    A

    Cu+2C{u^ + }^2

    B

    Zn+2Z{n^{ + 2}}

    C

    Mg+2M{g^{ + 2}}

    D

    Mn+2M{n^{ + 2}}

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:N2-Metab0Lism
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :nitrogen metabolism, nitrogenase, enzyme activation, micronutrients

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