Question

Root cap is not found in

• A. Mesophytes
• B. Xerophytes
• C. Hydrophytes
• D. Halophytes

Answer 1

The correct option is C Hydrophytes

Hydrophytes are plants growing in or near water. Root systems in hydrophytes are poorly developed which may or may not be branched in submerged hydrophytes. Roots are meaningless as the plant body which is in direct contact with water acts as absorptive surface and absorbs water and minerals. This may probably be the reason why roots in hydrophytes are reduced or absent. Roots of floating hydrophytes show very poor development of root hairs. Roots in floating plants do not possess true root caps as root caps are structures that protect the growing root tip of the plant, since hydrophytes do not require such a root cap they very often develop root pockets or root sheaths instead, which protect their root tips from injuries.

Xerophytes are plants adapted to survive in desert conditions, with very poor supply of water in their habitats. Mesophytes are plants growing in an environment which is neither very dry nor very wet. And halophytes are plants growing in saline soil.