28. Statement-I: Fibrous root system originates from the base of the stem.
Statement-II: Meristematic zone is proximal to the elongation zone.

29. Statement-I: Rosette of leaves and tuft of root on every node and short internode is found in Pistia.

Statement-I: Fibrous root system originates from the base of the stem.

This statement is true. In plants with a fibrous root system, the roots develop from the base of the stem. This type of root system is commonly found in monocots like grasses and wheat. Unlike a taproot system which has a primary root, the fibrous root system consists of many thin roots growing from the stem base, providing extensive coverage for water and nutrient absorption.
Statement-II: Meristematic zone is proximal to the elongation zone.
This statement is true. In plant roots, the meristematic zone is the region where cells are constantly dividing and is located just above the root cap. The elongation zone is situated above the meristematic zone, where the newly formed cells grow longer. Therefore, the meristematic zone is indeed proximal (closer) to the elongation zone.

Statement-I: Rosette of leaves and tuft of root on every node and short internode is found in Pistia.

This statement is true. Pistia, commonly known as water lettuce, is an aquatic plant that exhibits a distinctive growth pattern. It has a rosette of leaves that float on the surface of the water. Each node of the plant can give rise to a tuft of roots, which aids in anchoring the plant to the surface of the water and helps in nutrient absorption. This structural adaptation is ideal for its aquatic habitat, allowing efficient nutrient uptake and stability in floating environments.

Answered by BenjaminOwenLewis | 2025-07-21

All statements provided in the questions are true. The fibrous root system originates from the stem base, the meristematic zone is proximal to the elongation zone, and Pistia exhibits a rosette of leaves with tufts of roots at every node. These characteristics are essential for the effective functioning and survival of these plants in their environments.
;

Answered by BenjaminOwenLewis | 2025-08-22