What happens in plants during vascularisation?
Correct answer: B. Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously
- 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
Explanation
In plants during vascularisation, differentiation of procambium occurs followed by the formation of primary phloem and xylem simultaneously. The primary xylem is responsible for transporting water and minerals from the roots to the leaves. Primary phloem is responsible for transporting sugars and other organic compounds from the leaves to the rest of the plant. Secondary xylem and secondary phloem are formed from vascular cambium, which is a meristematic tissue that develops from procambium. The secondary xylem and secondary phloem form in concentric rings around the stem or root, increasing the thickness of the vascular system.
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About Kingdom Plantae
Plants are multicellular, photosynthetic eukaryotes with cellulose cell walls, chloroplasts and large vacuoles. Coverage includes alternation of generations, vascular and non-vascular plants, seedless and seed-producing groups, gymnosperms and angiosperms, and the distinction between monocot and dicot features.
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