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The Rhizobium...

Question

The Rhizobium bacteria present in the root nodules of pea plants can fix one of the following from the atmosphere. This one is :

(a) hydrogen (b) oxygen (c) nitrogen (d) halogen

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Solution

(c) nitrogen

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Similar questions

Q. The bacteria present in root nodules of leguminous plants, and can fix the atmospheric nitrogen is:

Q. Atmospheric nitrogen is fixed by __________.
(a) lightning
(b) blue-green algae
(c) bacteria present in the root nodules of leguminous plants
(d) all the above

Q. Nitrogen fixing bacteria are present on root nodules of leguminous plants to fix nitrogen.

Q. Statement 1: Plants cannot use atmospheric nitrogen directly.

Statement 2: Root nodules in the members of Dal family host rhizobium bacteria.

Refer the given passage and answer the following questions.

At present the primary nutrient which limits the agricultural yield is nitrogen (N). Some plants are capable to produce more

N_{2}

than they consume. These plants show symbioticz relationship with

N_{2}

-fixing bacteria such as Rhizobium. These bacteria produce root nodules in leguminous plants and convert atmospheric

N_{2}

into nitrogenous compounds. Rhizobium bacteria are gram negative bacteria, which show host specificity and fix

N_{2}

in the presence of a red pigment called leghaemoglobin. It protects nitrogen fixing enzyme nitrogenase from oxygen.

Which of the following statements is incorrect?

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