Question

The water cavity in the xylem of maize stem is?

• A. Schizolysigenously formed from protoxylem
• B. Lysigenously formed from protoxylem
• C. Schizogenously formed from metaxylem
• D. Lysigneously formed from metaxylem

Answer 1

The correct option is A Schizolysigenously formed from protoxylem

Schizolysigenous formed from protoxylem.

In vascular bundles the lowermost protoxylem vessels and xylem parenchyma cells dissolve forming a water containing schizolysigenous cavity called protoxylem cavity or lacuna or lysigenous cavity.Xylem functions as a conducting tissue for water and minerals from roots to the stem and leaves.It is composed of tracheids, vessels, xylem fibres and xylem parenchyma.