Question

why sporopollenin and lignin are important for teristerial plants​

Answer 1

Answer:

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Explanation:

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Answer 2

Sporopollenin and lignin are important for terestrial plants.

Explanation:

• Sporopollenin protects the pollen grain from external damage such as rain, high temperature etc.
• Sporopollenin forms the outercovering of the exine of the pollen grains.
• It is the most resistant organic material known on earth.
• While lignin provides strength to the xylem , makes it stiff.
• It provides stiffness to the plant cell wall and is believed to have played a role in evolution of terestrial plants.
• It facilitates the upward transport of water in xylem tissues.