How many ATP molecules are required to biologically fix one molecule of nitrogen into two molecules of ammonia?
1. 4
2. 8
3. 12
4. 16
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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 & BiologySelect the mismatch.
(1) Frankia Alnus
(2) Rhodospirillium Mycorrhiza
(3) Anabaena Nitrogen fixer
(4) Rhizobium Alfa-fa
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich is essential for the growth of root tip?
(1) Zn
(2) Fe
(3) Ca
(4) Mn
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn which of the following, all three are macronutrients?
(1) Iron, copper, molybdenum
(2) Molybdenum, magnesium, manganese
(3) Nitrogen, magnesium, phosphorus
(4) Boron, zinc, manganese
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements involved in this reaction?
1. Manganese and chlorine
2. Manganese and potassium
3. Manganese and molybdenum
4. Magnesium and chlorine
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMinerals known to be required in large amounts for plant growth include
1. Phosphorus, potassium, sulphur, calcium
2. calcium, magnesium, manganese, copper
3. potassium, phosphorus, selenium, boron
4. magnessium, sulphur, iron, zinc
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDeficiency symptoms of nitrogen and potassium are visible first in
1. senescent leaves
2. young leaves
3. roots
4. buds
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe most abundant intracellular cation is
1. Na+
2. Ca2+
3. H+
4. K+
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe first stable product of fixation of atmospheric nitrogen in leguminous plants is
1.
2. ammonia
3.
4. glutamate
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology