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Mineral Nutrition

Question

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Which of the following is a symbiotic nitrogen fixer?

Glomus

Azotobacter

Frankia

Azolla

Solution

C.

Frankia

Casuarina tree has nitrogen-fixing root nodules that harbour a filaments streptomycete like symbiotic nitrogen-fixing organism, called Frankia.

Some More Questions From Mineral Nutrition Chapter

How is nitrogenase enzyme protected ?

What is Hidden hunger in the case of plants?

Which kind of plants harbour nitrogen fixing bacteria in their root nodules ?

When a section of root nodule of a legume is examined it appears pinkish. Why ?

What is active absorption ?

What are Chemoautotrophs ?

Who discovered biological nitrogen fixation ?

Name two sulphur containing amino acids.

What is theultimate product of nitrogen fixation?

What is meant by outer-space of cells?

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