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Transport In Plants

Question

Wired Faculty App

The function of leghemoglobin in the root nodules of legumes is

oxygen removal

nodule differentiation

expression of nif gene

inhibition of nitrogenase activity

Solution

A.

oxygen removal

Leghaemoglobin is an oxygen scavenger. It protects the nitrogen-fixing enzyme nitrogenase.

Some More Questions From Transport in Plants Chapter

Why the cortex produces no resistance to movement of water ?

What is transmembrane pathway ?

Give the term for the ability to resist a pulling force.

Who introduced the apoplast—symplast concept ?

Why transpiration is more on lower surface than on upper surface of leaves ?

Give the term for the ability to rise in thin tubes.

What is capillarity ?

Name the two forces responsible for the rise of water in a capillary tube.

Which force is first operative in translocation of water through capillarity : cohesive force or adhesive force ?

Name the driving force for water movements in plants.

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