Question

What happens in plants during vascularisation:

• A. Differentiation of procambium, formation of primary phloem followed by formation of primary xylem
• B. Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously
• C. Formation of procambium,primary phloem and xylem simultaneously
• D. Differentiation of procambium followed by the formation of secondary xylem

Answer 1

Answer: (B)

Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously

Answer 2

Vascularization refers to the process of vascular bundle formation from procambium in plants. Initially, thin-walled, elongated procambium strands are generated during early growth and differentiation. These strands subsequently undergo immediate differentiation, giving rise to both primary xylem and primary phloem simultaneously. Following procambium development, primary vascular tissues are formed. It's important to note that secondary xylem arises from the vascular cambium during secondary growth, rather than originating directly from procambium.

So, the correct option is (B): Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously