ex 15 symbiotic nitrogen fixing bacteria

Question 1

why do legumes have nodules

Answer 1

due to rhizobium that caused an infecion of root hairs

Question 2

the rhizobium grow to large populations on the noduels

Question 3

the plant and the rhizobium

Answer 3

exist in a symbiotic relationship due to the growth by uing energy from host causes it to fix nitrogen into a fixed form

Question 4

when the rhizobium infects

Answer 4

it causes the plant roots to invaginate into the secodary roots, creating a pathway for the bac into the formation of nodules

Question 5

thin walled parenchyma cells which are packed with the rhizobium