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Excretion in Humans — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYExcretion in Humans2 Marks
Question
Differentiate between
tannins and resins
✓

Answer

Tannins Resins
1 These are a group of complex compounds found in the bark and leaves. 1 These are the secretions of many plants like coniferous trees.
2 Its presence in tea leaves makes tea taste bitter. 2 It is used in the production of varnishes and adhesives and perfumes and incense.

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