Question

Q19. Answer following questions on the basis of figure below:
Root Nodules
(a) Root nodules of which plants are shown here?
(b) Name the bacteria that resides here.
(c) What kind of relationship does the root nodules and the residing bacteria shows?
(d) What is the role of bacteria residing here?
(e) Why such plant should be sown on unfertile lands?​

Answer 1

(a)Leguminous plants

(b)Rhizobium

(c)Symbiotic relationship

(d)The bacteria fixes the atmospheric nitrogen,i.e.,converts atmospheric nitrogen into simpler form which is easily absorbed by the plants.

(e)This is because they can meet their needs for minerals & nutrients with the help of Rhizobium bacteria.