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Question

Which of the following are methods by which plants excrete wastes?


A

Transpiration

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B

Resins and gums

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C

Translocation

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D

Through old leaves that fall off

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Solution

The correct option is D

Through old leaves that fall off


  • Plants lose water in the process of transpiration and guttation.
  • Plants store some waste products in leaves which will fall off.
  • Oxygen produced during photosynthesis passes out through the stomata.
  • Waste materials can also be stored in old xylem in the form of resin and gum and are then secreted out through the bark.
  • Translocation is the process of transport of food from one part of the plant body to another.

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