The structure produced when nitrogen-fixing bacteria infect legume plants and forms a symbiotic relationship is called a(an) ________.
A) adventitious root
B) crown gall
C) root nodule
D) secondary root
E) legume node

Question

Quizplus · Accepted Answer

Root nodules are the structures formed on the roots of legume plants when they are infected by nitrogen-fixing bacteria, such as Rhizobium. This symbiotic relationship allows the plant to obtain nitrogen in a usable form, while the bacteria receive carbohydrates and a protective environment.

The Structure Produced When Nitrogen-Fixing Bacteria Infect Legume Plants and Forms