Question

A tracheid is

• A. With multinucleate condition
• B. Unicellular
• C. Multicellular
• D. None of these

Answer 1

The correct option is B Unicellular

Tracheids are the components of the xylem tissue in plants. Tracheids are prominent water-conducting elements in gymnosperms. They are also present in angiosperms. These become dead at maturity by the deposition of lignin on their walls so that the absence of cytoplasmic content can allow movement of water. Each tracheid is unicellular with tapering ends and wider lumen than the fibers.

Hence, the correct answer is 'Dead at maturity' and 'unicellular'.