NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Nitrogen-fixing bacteria live on the roots of leguminous plants in swellings called nodules. The bacteria synthesize nitrogen compounds that are used by the plants, and the plants provide moisture and nutrients for the bacteria. The interaction between the nitrogen-fixing bacteria and the leguminous plants is known as
A
parasitism
B
mutualism
C
saprophytism
D
commensalism
Explanation: 

Detailed explanation-1: -Hence, the correct answer is ‘Rhizobium’.

Detailed explanation-2: -Rhizobium is a nitrogen-fixing bacteria found in the root nodules of pulses like peas, green gram etc. The bacteria fix atmospheric nitrogen and provide it to the plants to absorb. In return, the plants provide shelter and nutrition to the bacteria.

Detailed explanation-3: -Legumes are able to form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia. The result of this symbiosis is to form nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant.

Detailed explanation-4: -Nitrogen fixation is carried out by a variety of bacteria. Rhizobium is the best-known nitrogen-fixing bacteria. These leguminous plants develop nodules to house the bacteria. The bacteria help fix atmospheric nitrogen and convert them to that form of nitrogen which is easier for plants to absorb.

Detailed explanation-5: -Leguminous plants like pea plant have nitrogen fixing bacteria called Rhizobium bacteria in their root nodule.

There is 1 question to complete.