Leghaemoglobin is produced in response to

1. respiration 

2. photosynthesis

3. fatty acid synthesis

4. N2 fixation.
 

Subtopic:  Nodule formation | Nitrogen Metabolism: 1 | Nitrogen metabolism |
 90%
From NCERT
AIIMS - 2012
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Plants do not get benefit from

(1) N2 in air

(2) O2 in air

(3) CO2 in air

(4) O3 in air.

Subtopic:  Ammonia Assimilation & Nitrogen Export | Questions |
 58%
AIIMS - 2014
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Which of the following set of elements are essential for the photosynthesis to occurs

(1) Cu, Co, Fe

(2) Cu, Mo, Zn

(3) Mg, Co, Mn

(4) Mg, Fe, Mn, Cu, Cl, P

Subtopic:  Mineral Function |
 71%
AIIMS - 2014
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Which enzyme complex is responsible for the reduction of molecular nitrogen to the level of NH3 in

root module of legume?

(1) Aminase

(2) Nitrogenase

(3) Nitrate reductase

(4) Nitrite reductase

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
 83%
From NCERT
AIIMS - 2013
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Which one of the following is not a microelement for plants?
(1) Cu

(2) B

(3) Zn

(4) Cr

Subtopic:  Classification of Nutrients |
 78%
From NCERT
AIIMS - 2009
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Which of the following is correct set of micronutrient for plants?

1. Mg, Si Fe, Cu Ca

2. Cu, Fe, Zn, B, Mn

3. Mg, Fe, Zn, B, Mn

4. Mo, Zn, Cl, Mg, Ca

Subtopic:  Classification of Nutrients |
 89%
From NCERT
AIIMS - 2007
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The function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to
1. convert atmospheric N2 to NH3
2. convert ammonia to nitrite
3. transport oxygen for activity of nitrogenase
4. protect nitrogenase from oxygen.

Subtopic:  Genetics & Biochemistry of Nitrogen Fixation |
 84%
From NCERT
AIIMS - 2006
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Hydroponics is

1. cultivation of plants in water

2. growth of plants towards water

3. growth of plants away from water

4. soilless cultivation of plants

Subtopic:  Hydroponics & Aeroponics |
 75%
From NCERT
AIIMS - 2001
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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 |
 94%
From NCERT
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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 |
NEET - 2006
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