Question

Which of the following methods does a plant use to excrete waste?

• A. Transpiration
• B. Translocation
• C. Falling off leaves
• D. Resins and gums

Answer 1

Answer: (A), (C), (D)

Resins and gums

Plants can excrete wastes through transpiration, in the form of resins and gums, and by shedding leaves.

• Plants lose excess water through the process of transpiration and guttation.
• Plants store some waste products in old leaves which will eventually fall off.
• 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, hence not a method of excretion.