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Q. No.Which of the following is a non–symbiotic nitrogen fixing bacteria?
1. Rhizobium
2. Mycorrhiza
3. Azotobacter
4. Nitrosomonas
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAnabaena is associated with Azolla's:
1. Stem
2. Leaves
3. Roots
4. Flowers
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following does not contain metal:
1. Glycoproteins
2. Ferritin
3. Cytochromes
4. Chromoproteins
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNitrogen-fixing bacteria converts:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyInsectivorous plants grow in the soil which is deficient in:
1. Mg
2. Ca
3. P
4. N
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen the plants are grown in magnesium-deficient but urea-rich soil, the symptoms expressed are:
1. Yellowish leaves
2. Colourless petiole
3. Dark green leaves
4. Shoot apex die
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPlants take zinc in the form of:
| 1. ZnSO4 | 2. Zn2+ |
| 3. ZnO | 4. Zn |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn aquatic fern that is used to increase the yield of paddy crops:
1. Azolla
2. Salvinia
3. Marsilea
4. Isoetes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the best pH of the soil for the cultivation of plants:
1. 3.4 – 5.4
2. 6.5 – 7.5
3. 4.5 – 8.5
4. 5.5 – 6.5
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEnzyme first used for nitrogen fixation:
1. Nitrogenase
2. Nitroreductase
3. Transferase
4. Transaminase
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