Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 15 PCB Single Correct MCQ
Published on: August 13, 2026

Read the following statements about the phases of growth in root tip and identify which of the following are the features of cells found in the phase of elongation:

A
The cells in this region are rich in protoplasm and possess large, conspicuous nuclei.
A and D only
B
The cells of this region are very small, thin-walled, and have abundant plasmodesmatal connections.
B and D only
C
They show increased vacuolation, cell enlargement, and new cell wall deposition.
A and C only
D
They attain their maximal size in terms of wall thickening and protoplasmic modifications.
(E) In roots, rapid elongation and enlargement are responsible for the growth of the root in length.
Choose the correct answer from the options given below:
C and E only

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Text Solution

Verified by Experts
The correct answer is:
D

Meristematic phase of growth shows - The cells in this region are rich in protoplasm and possess large, conspicuous nuclei.
The cells of this region are very small, thin-walled, and have abundant plasmodesmatal connections.
Phase of elongation shows - They show increased vacuolation, cell enlargement, and new cell wall deposition. In roots, rapid elongation and enlargement are responsible for the growth of the root in length.
Phase of maturation shows - They attain their maximal size in terms of wall thickening and protoplasmic modifications.

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