Match Column-I with Column- II.
Column I | Column II |
(a) Nitrococcus (b) Rhizobium (c) Thiobacillus (a) Nitrobactèr |
(i) Denitrification (ii) Conversion of ammonia to nitrite (iii) Conversion of nitrite to nitrate (iv) Conversion of atmospheric nitrogen to ammonia |
Choose the correct answer from the options given below.
(a) (b) (c) (d)
1. (iii) (i) (iv) (ii)
2. (iv) (iii) (ii) (i)
3. (ii) (iv) (i) (iii)
4. (i) (ii) (iii) (iv)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following bacteria reduce nitrate in soil into nitrogen ?
1. Nitrobacter
2. Thiobacillus
3. Nitrococcus
4. Nitrosomonas
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the mismatch:
1. Rhodospirillum - Mycorrhiza
2. Anabaena - Nitrogen fixer
3. Rhizobium - Alfalfa
4. Frankia - Alnus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. convert free nitrogen to nitrogen compounds
2. convert proteins into ammonia
3. reduce nitrates to free nitrogen
4. oxidize ammonia to nitrates
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe free-living, anaerobic nitrogen-fixer is
1. Beijerinckia
2. Rhodospirillum
3. Rhizobium
4. Azotobacter
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStudy the cycle shown below and select the option which gives correct words for all the four blanks A, B, C and D
Options :
A B C D
1. Denitrification Ammonification Plants Animals
2. Nitrification Denitrification Animals Plants
3. Denitrification Nitrification Plants Animals
4. Nitrification Ammonification Animals Plants
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is a symbiotic nitrogen fixer?
1. Glomus
2. Azotobacter
3. Frankia
4. Azolla
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAll of the following statements concerning the Actinomycetous filamentous soil bacterium Frankia are correct EXCEPT that Frankia
1. Forms specialized vesicles in which the nitrogenase is protected from oxygen by a chemical barrier involving triterpene hopanoids
2. Can induce root nodules on many plant species
3. Like Rhizobium, it usually infects its host plant through root hair deformation and stimulates cell proliferation in the host's cortex
4. Cannot fix nitrogen in the free-living state
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf by radiation all nitrogenase enzyme are inactivated, then there will be no :-
1. Fixation of atmospheric nitrogen
2. Conversion from nitrate to nitrite in legumes
3. Conversion from ammonium to nitrate in soil
4. Fixation of nitrogen in legumes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology