A (i) is a non-living, elongated cell with tapering ends. Its walls are highly thickened with (ii) except at certain circular spots known as (iii) . A (iv) is a cylindrical tubelike structure placed one above the other end to end. (v) is a non-living, thick-walled cell providing mechanical support. Select the correct sequence of words to complete the above paragraph.
A (i) is a non-living, elongated cell with tapering ends. Its walls are highly thickened with (ii) except at certain circular spots known as (iii) . A (iv) is a cylindrical tubelike structure placed one above the other end to end. (v) is a non-living, thick-walled cell providing mechanical support. Select the correct sequence of words to complete the above paragraph.
The correct option is D - Tracheid
- Lignin
- Pits
- Vessel
- Xylem fibre
The correct answer is Option D:
Explanation of correct option:
- Tracheids are long, tapered, and lignified cells present in the xylem.
- Lignin is a polymer that provides hardness and mechanical strength to various plant cells.
- Pits are non-lignified areas in vessels and tracheids which facilitate water movement.
- Vessels are narrow, hollow, and cylindrical tubes stacked one above the other, which facilitate transport in plants.
- Xylem Fibers are non-living sclerenchyma cells that are present between the tracheid and vessels and provide mechanical support to the xylem tissue.
Final Answer: Hence, A Tracheid is a non-living, elongated cell with tapering ends. Its walls are highly thickened with Lignin except at certain circular spots known as Pits. A Vessel is a cylindrical tube-like structure placed one above the other end to end. Xylem fibre is a non-living, thick-walled cell providing mechanical support.
- Tracheid
- Lignin
- Pits
- Vessel
- Xylem fibre
The correct answer is Option D:
Explanation of correct option:
- Tracheids are long, tapered, and lignified cells present in the xylem.
- Lignin is a polymer that provides hardness and mechanical strength to various plant cells.
- Pits are non-lignified areas in vessels and tracheids which facilitate water movement.
- Vessels are narrow, hollow, and cylindrical tubes stacked one above the other, which facilitate transport in plants.
- Xylem Fibers are non-living sclerenchyma cells that are present between the tracheid and vessels and provide mechanical support to the xylem tissue.
Final Answer: Hence, A Tracheid is a non-living, elongated cell with tapering ends. Its walls are highly thickened with Lignin except at certain circular spots known as Pits. A Vessel is a cylindrical tube-like structure placed one above the other end to end. Xylem fibre is a non-living, thick-walled cell providing mechanical support.
