Insectivorous plants grow in the soil which is deficient in:
1.  Mg
2.  Ca
3.  P
4.  N

Subtopic:  Mineral Deficiency & Toxicity |
 56%
AIPMT - 1999
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NEET 2026 - Target Batch - Vital
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When 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

Subtopic:  Mineral Deficiency & Toxicity |
 82%
AIPMT - 2000
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NEET 2026 - Target Batch - Vital
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Plants take zinc in the form of:

1. ZnSO4 2. Zn2+
3. ZnO 4. Zn
Subtopic:  Mineral Function |
 95%
From NCERT
AIPMT - 2000
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NEET 2026 - Target Batch - Vital
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An aquatic fern that is used to increase the yield of paddy crops:

1. Azolla

2. Salvinia

3. Marsilea

4. Isoetes

Subtopic:  Nitrogen Fixation |
 84%
AIPMT - 2000

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The major role of minor elements inside living organisms is to act as:
1. Co-factors of enzymes
2. Building blocks of important amino acids
3. Constituent of hormones
4. Binder of cell structure

Subtopic:  Mineral Function |
 66%
From NCERT
AIPMT - 2003
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Which element is located at the center of the porphyrin ring in chlorophyll?

1. Calcium 2. Magnesium
3. Potassium 4. Manganese
Subtopic:  Mineral Function |
 90%
From NCERT
AIPMT - 2003
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Which one of the following mineral elements plays an important role in biological nitrogen fixation:
1. Copper
2. Manganese
3. Zinc
4. Molybdenum

Subtopic:  Mineral Function |
 82%
From NCERT
AIPMT - 2003
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Plants deficient in the element zinc show its effect on the biosynthesis of which plant growth hormone:

1. Auxin 2. Cytokinin
3. Ethylene 4. Abscissic acid
Subtopic:  Mineral Deficiency & Toxicity |
 74%
From NCERT
AIPMT - 2003
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In which one of the following nitrogen is not a constituent:

1. Idioblast

2. Bacteriochlorophyll

3. Invertase

4. Pepsin

Subtopic:  Mineral Function |
AIPMT - 2003

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Boron in green plants assists in:
1. Activation of enzymes
2. Acting of enzyme cofactor
3. Photosynthesis
4. Sugar transport

Subtopic:  Mineral Function |
 60%
From NCERT
AIPMT - 2003
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NEET 2026 - Target Batch - Vital
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