NEETBotanyMorphology of Flowering Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In maize and sugarcane, supporting roots arise from the lower nodes of the stem. Reason (R): These supporting roots are called fibrous roots, which originate from the base of the stem. In the light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A).
- C(A) is true but (R) is false.
- D(A) is false but (R) is true.
Correct answer
C. (A) is true but (R) is false.
Step-by-step solution
Assertion (A) is true because the stems of maize and sugarcane have supporting roots coming out of the lower nodes of the stem, which provide mechanical support to the plant. Reason (R) is false because the supporting roots arising from the lower nodes are called stilt roots, not fibrous roots. While fibrous roots do originate from the base of the stem and are found in monocots, the specific supporting roots described in the assertion are stilt roots. Answer: (A) is true but (R) is false.