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Which of the following tissues is produced by the vascular cambium during secondary growth?

Option: 1


Option: 2


Option: 3


Option: 4


Answers (1)


The vascular cambium produces new xylem towards the inside and new phloem towards the outside during secondary growth.

  • Secondary growth is the process of growth that increases the thickness of a plant's stem or root. It occurs in dicotyledonous and gymnosperm plants. 

  • The secondary growth results from the activity of two lateral meristems: vascular cambium and cork cambium. 

  • The vascular cambium adds secondary xylem (wood) to the inside of the stem and secondary phloem to the outside of the stem, while the cork cambium replaces the epidermis with a thicker, protective layer of cork. 

  • This process enables the plant to provide more structural support and increase water and nutrient transport efficiency.

  • Phloem: a vascular tissue in plants that transports sugars and other organic compounds.

  • Cork: a protective, waterproof outer layer of cells in woody plants.

  • Epidermis: the outermost layer of cells in plants that protect against water loss, regulates gas exchange, and helps absorb nutrients.

  • Hence, the correct answer is option 1.

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