Strategies For Enhancement In Food Production Question 483
Question: Which one is a non-symbiotic nitrogen fixer [Pb. PMT 1998]
Options:
A) Rhizobium
B) Oscillatoria
C) Nostoc
D) Lactobacillus
Show Answer
Answer:
Correct Answer: A
Solution:
Nostoc is a free living nitrogen-fixing blue green algae probably with the help of heterocysts.
Photosynthesis does not provide the energy for nitrogen fixation.
BETA
