Which one of the following plants is vessel-less or trachea-less ?

The correct answer is Pinus

Explanation:

• Vessel-less or trachea-less plants are plants that lack vessels in their xylem tissue. Vessels are specialized structures that aid in efficient water and nutrient transport in vascular plants.
• The xylem in such plants consists primarily of tracheids, which are elongated cells that conduct water and provide structural support.
• These plants belong to the gymnosperms, which are a group of seed-producing plants that lack flowers and fruits.
• Pinus:
  • Pinus is a gymnosperm and belongs to the conifer group.
  • It lacks xylem vessels and relies solely on tracheids for water conduction and structural support.
  • Tracheids are less efficient than vessels in conducting water, but their presence is characteristic of gymnosperms like Pinus.
• Jackfruit:
  • Jackfruit belongs to the angiosperms (flowering plants). Angiosperms have xylem vessels that are specialized for efficient water transport.
• Fan Palm (Tal):
  • Fan Palm is also an angiosperm and has xylem vessels for water conduction.
• Gnetum:
  • Gnetum is a gymnosperm, but it is unique among gymnosperms because its xylem contains both tracheids and vessels.