Nitrogen Metabolism Practice Test

1.The bacteria responsible for nodulation in stems and root of sesbania rostrata?
Frankia
Azotobacterc
Azorhyzobium
Bradyhyzobium

2.Free-living nitrogen fixers can survive in different ecological niches. Identify the incorrect combination from the following list:
Azotobacter-Acidic soil
Deraxia-Alkaline soil
Bejernckia-acid soil
Frankia -Neutral soil

3.Which one of the folowing combinations of nodulation (nod) genes are found in all rhizobial starins
nodA, nodB, and nodC
nodP, nodQ, and nodH
nodF, nodE, and nodL
nodA, nodE, and nodL

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4.Which of the following domains is present in symbiosis recptor like kinase (SYMRK) proteins
Nucleotide binding repeat
leucine rich repeat region
NAC domain
W-box

Immunology Videos

5.Major transport of nitrogen in xylem sap is in the form of

Glutamate
Asparagine
Glutamine
Ammonia

Score =
Correct answers:

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