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NEET • BIOLOGY • MINERAL NUTRITION
Mineral nutrition practice · Hard
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Read the below given equation and select the correct option for 'A'.
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Correct option: B
is glutamate dehydrogenase
Option A is glutamate synthase. The reaction is .
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A nitrogen fixing microbe associated with the fern Azolla in rice fields is?
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Correct option: D
Anabaena
Option D (Anabaena) is correct because Anabaena is a nitrogen-fixing cyanobacterium associated with the fern Azolla in rice fields.
33
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Read the given statements and select the correct option.
A. Deficiency symptoms of calcium first appear in younger leaves.
B. Excess of Mn causes reduction in uptake of and .
A. Deficiency symptoms of calcium first appear in younger leaves.
B. Excess of Mn causes reduction in uptake of and .
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Correct option: C
Both and are true
Option C (Both A and B are true) is correct because both statements accurately describe calcium deficiency symptoms and manganese toxicity effects.
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Necrosis means
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Correct option: C
death of cells, tissues
Option C (death of cells, tissues) is correct because necrosis refers to the premature death of cells and tissues in a living organism.
35
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Which of the following statements is incorrect?
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Correct option: C
Amides contain more nitrogen than the amino acids
Option D (Both (2) & (3)) is correct because amides contain more nitrogen than amino acids, and ureides have a low carbon to nitrogen ratio.
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Statement I: The entry of ions to the symplast is an active process while exit from it is passive
Statement II: The movement of ions into the apoplast occurs through the trans-membrane proteins
Statement II: The movement of ions into the apoplast occurs through the trans-membrane proteins
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Correct option: B
Both statement I and II are incorrect
Option B (Both statement I and II are incorrect) is correct because the entry of ions to the symplast is an active process, while exit is passive, and the movement of ions into the apoplast occurs through the cell walls and intercellular spaces, not just transmembrane proteins.
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Diet lacking essential micronutrients particularly iron, iodine, zinc and vit-A results in?
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Correct option: D
More than one option is correct
Option D (More than one option is correct) is correct because deficiencies in iron, iodine, zinc, and vitamin A can increase the risk of disease and reduce mental abilities.
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During fixation, reduction of one molecule of nitrogen into 2 molecules of consumes – molecules of ATP?
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Correct option: B
16
Option B (16) is correct because the reduction of one molecule of nitrogen into two molecules of ammonia consumes 16 molecules of ATP.
Revision notes and key takeaways
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Showing 31-38 of 38 questions