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Excretion in Animals and Plants — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYExcretion in Animals and Plants3 Marks
Question
Differentiate between:
excretion and transpiration Ans.
✓

Answer

Excretion
  • It is the process of removing or getting rid of waste matter from the body.
  • Excretion rate is independent of time of the day.
  • All living beings have special organs called excretory organs to get red of their harmful wastes.
  • It occurs both in plants and animals.
Transpiration :
  • It is the process of losing excess water from aerial plant parts in the form of water vapour.
  • Rate of transpiration is more during the day.
  • Plants lose water through stomata and lenticels.
  • It occurs only in plants.

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