Which one of the following is not a micronutrient?

1. Molybdenum

2. Magnesium

3. Zinc

4. Boron

Subtopic:  Classification of Nutrients |
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The free-living, anaerobic nitrogen-fixer is

1. Beijerinckia

2. Rhodospirillum

3. Rhizobium

4. Azotobacter

Subtopic:  Nitrogen Fixation |
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The common nitrogen-fixer in paddy fields is

1. Rhizobium

2. Azospirillum

3. Oscillatoria

4. Frankia

Subtopic:  Nitrogen Fixation |
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Which of the folowing is a symbiotic nitrogen fixer?

1. Glomus

2. Azotobacter

3. Frankia

4. Azolla

Subtopic:  Nitrogen Fixation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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About 98 percent of the mass of every living organism is composed of just six elements

including carbon, hydrogen, nitrogen, oxygen and:

1. phosphorus and sulphur

2. sulphur and magnesium

3. magnesium and sodium

4. calcium and phosphorus

Subtopic:  Mineral Function |
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Which one of the following elements is not an essential micronutrient for plant growth?

1. Mn

2. Zn

3. Cu

4. Ca

Subtopic:  Classification of Nutrients |
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Please attempt this question first.

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A plant requires magnesium for

1. holding cells together

2. protein synthesis

3. chlorophyll synthesis

4. cell wall development

Subtopic:  Mineral Function |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Farmers in a particular region were concerned that pre-mature yellowing of leaves of a

pulse crop might cause decrease in the yield. Which treatment could be most beneficial to

obtain maximum seed yield?

1. Frequent irrigation of the crop

2. Treatment of the palnts with cytokinins alongwith a small dose of nitrogenous fertilizer

3. Removal of all yellow leaves and spraying the remaining green leaves with 2, 4, 5 

trichlorophenoxy acetic acid

4. Application of iron and magnesium to promote synthesis of chlorophyll

Page-197, XI NCERT

Subtopic:  Mineral Function |
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To view explanation, please take trial in the course below.
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Sulphur is an important nutrient for optimum growth and productivity in:

1. pulse crops

2. cereals

3. fibre crops

4. oilseed crops

Subtopic:  Mineral Function |
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The function of leghaemoglobin is

1. to provide oxygen to leg muscles of nitrogen-fixing

2. to protect oxygen-sensitive enzymes of nitrogen fixing bacteria in the root nodules of

legumes

3. to walk to the sites where oxygen is required

4. to function when haemoglobin is not available.

Subtopic:  Genetics & Biochemistry of Nitrogen Fixation |
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NEET 2022 - Target Batch - Aryan Raj Singh

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