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Excretion in Animals and Plants — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYExcretion in Animals and Plants2 Marks
Question
Differentiate between:
tannins and resins.
✓

Answer

Tannins
  • These are group of complex compounds found in the bark and leaves.
  • Its presence in tea leaves makes tea taste bitter.
Resins :
  • These are the secretions of many plants like coniferous trees.
  • It is used in the production of varnishes and adhesives and perfumes and incense.

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