Q. No.The nitrifying bacteria are
(1) Photoautotroph
(2) Chemoautotroph
(3) Nitrotroph
(4) Organotroph
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLeghaemoglobin is produced in response to
1. respiration
2. photosynthesis
3. fatty acid synthesis
4. N2 fixation.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAmmonia is first oxidized to nitrite by the bacteria except
(1) Nitrosomonas
(2) Nitrococcus
(3) Nitrobacter
(4) All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNitrogen:
Find the incorrect one.
1. Plants compete with microbes for it.
2. It is a limiting nutrient for both natural and agricultural ecosystem
3. Nitrogen has triple covalent bonds
4. Nitrogen fixation is conversion of nitrogen into nitrate
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following does not happen during nodule formation?
(1) Rhizobium bacteria contact a susceptible root hair, divide near it
(2) Successful infection of root hair causes it to curl
(3) Infected thread carries the bacteria to the inner cortex
(4) The bacteria get modified into rod shaped bacteroides and cause inner cortical and endodermal cells to divide
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn nature, ……….. and ……….. provide enough energy to convert Nitrogen to nitrogen oxides (NO, NO2, N2O).
(1) Lightning, Forest fires
(2) Industrial combustions, UV radiation
(3) Forest fire, Lightning
(4) Lightning, UV radiation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyConsider the following:
I Facilitation of uptake and utilization of calcium by plants
II. Cell elongation and cell differentiation
III. Nitrogen metabolism
IV. Carbohydrate translocation
V. Water splitting reaction in photosynthesis
The functions of Boron in plants will include:
1. I,II, III, IV
2. I, II, IV
3. II, III, IV
4. I, III, V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe reduction of absorbed nitrate occurs
(1) In leaves
(2) In roots
(3) In soil
(4) In air
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyElectrical nitrogen fixation leads to
(1) Formation of Nitrate
(2) Formation of Nitrite
(3) Formation of Ammonia
(4) Formation of Nitrogen
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe main amino acid over which Transamination occurs.
(1) Glutamate
(2) Alanine
(3) Glycine
(4) Lysine
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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