Question

Match column - I with column - II and the correct option the codes given below.

	column-I	column-II
	Vessels	cells are living, with thin cellulosic cell walls.
	Tracheids	cells prosses highly thickened walls with an obliterated central lumen.
	Xylem fibers	Individual members are interconnected through a perforation in their common walls.
	Xylem parenchyma	Elongated tube-like cells with thick lignified walls and tapering end.

• A. A - (iv) , B -(iii), c-(ii) , D -(i)
• B. A - (iii), B-(iv), C - (ii) , D -(i)
• C. A - (ii) , B - (iv) , C - (iii) , D - (|)
• D. None of these
  

Answer 1

The correct option is B A - (iii), B-(iv), C - (ii) , D -(i)

• Vessel element or trachea is a cell type found in xylem or the water-conducting tissue in plants, with perforation plates in their walls.
  
• Tracheids are an elongated tube-like structure in the xylem of vascular plants which helps in the transport of water and mineral salts and they do not have perforation plates.
• Xylem contains two other type of cells- xylem fibres and xylem parenchyma.
• Xylem fibres have very thick lignified secondary cell walls.
• Xylem parenchyma is the living cell with dense cytoplasm and prominent nucleus.
• So, the correct answer is 'A - (iii), B-(iv), C - (ii) , D -(i)'.