Morphology Of Flowering Plants Root Stem And Leaf Question 233
Question: Bacteria found in root nodules of legumes are [CPMT 1998; DPMT 2002]
Options:
A) Nitrobacter
B) Nitrosomonas
C) Rhizobium
D) Azotobacter
Show Answer
Answer:
Correct Answer: C
Solution:
Root nodules contain nitrogen fixing bacteria (Rhizobium leguminosarum) which fix atmospheric free nitrogen in to ammonia.
The fixed nitrogen is absorbed by the plant.
In return, the plant provides food and shelter to bacteria.
Such an association is called mutualistic symbiosis.
BETA
