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Q. No.

In which of the following forms is iron absorbed by plants?

1. Ferric
2. Ferrous
3. Free element
4. Both ferric and ferrous

Q6:
 68% From NCERT NEET - 2018
Subtopic:  Mineral Function |
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Which of the following elements is responsible for maintaining turgor in cells ?
1. Magnesium
2. Sodium
3. Potassium
4. Calcium

 

Q7:
 84% From NCERT NEET - 2018
Subtopic:  Mineral Function |
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In which of the following, all three are macronutrients?
1. Iron, copper, molybdenum
2. Molybdenum, magnesium, manganese
3. Nitrogen, zinc, manganese
4. Nitrogen, magnesium, phosphorus
Q9:
 79% From NCERT NEET - 2016
Subtopic:  Classification of Nutrients |
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During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by

1. Leghaemoglobin

2. Xanthophylls

3. Carotene

4. Cytochrome

Q10:
 94% From NCERT NEET - 2015
Subtopic:  Nodule formation |
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Minerals 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. magnesium, sulphur, iron, zinc

 

Q11:
 82% From NCERT NEET - 2015
Subtopic:  Classification of Nutrients |
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Deficiency symptoms of nitrogen and potassium are visible first in :

1. Senescent leaves

2. Young leaves

3. Roots

4. Buds

Q12:
 83% From NCERT AIPMT - 2014
Subtopic:  Mineral Deficiency & Toxicity |
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The most abundant intracellular cation is :
1. Ca2+
2. H+
3. K+
4. Na+

Q13:
 68% From NCERT AIPMT - 2013
Subtopic:  Mineral Function |
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Best defined function of manganese in green plants is

1. Photolysis of water

2. Calvin cycle

3. Nitrogen fixation

4. Water absorption

Q14:
 89% From NCERT AIPMT - 2012
Subtopic:  Mineral Function |
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An element playing important role in nitrogen fixation is

1. molybdenum

2. copper

3. manganese

4. zinc

 

Q20:
 82% From NCERT AIPMT - 2010
Subtopic:  Mineral Function |
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The function of leghemoglobin in the root nodules of legumes is

1. oxygen removal
2. nodule differentiation
3. expression of nif gene
4. inhibition of nitrogenase activity

Q16:
 87% From NCERT AIPMT - 2011
Subtopic:  Nodule formation |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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