NEETBotanyPlant - Growth and Development
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Cells situated just proximal to the meristematic zone in a root tip exhibit increased vacuolation and new cell wall deposition. Reason (R): These cells possess primary, thin, and cellulosic cell walls with abundant plasmodesmatal connections. In the light of the above statements, choose the most ap
Options
- AAssertion (A) is true but Reason (R) is false.
- BAssertion (A) is false but Reason (R) is true.
- CBoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- DBoth Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
Correct answer
A. Assertion (A) is true but Reason (R) is false.
Step-by-step solution
The cells situated just proximal to the meristematic zone represent the phase of elongation. According to NCERT, these cells are characterised by increased vacuolation, cell enlargement, and new cell wall deposition. Therefore, the Assertion (A) is true. The characteristics mentioned in the Reason (R) — primary, thin, and cellulosic cell walls with abundant plasmodesmatal connections — belong to the cells in the meristematic phase, not the elongation phase. Therefore, the Reason (R) is false. Hence, Assertion (A) i