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Tissue and Tissue System — BIO BOTANY STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11BIO BOTANYTissue and Tissue System3 Marks
Question
Mention any three differences between stomata and hydathodes.
✓

Answer

Stomata:
  1. Occur in epidermis of leaves, young stems.
  2. Stomatal aperture is guarded by two guard cells.
  3. The two guard cells are generally surrounded by subsidiary cell.
Hydathodes:
  1. Occur at the tip or margin of leaves that are grown in moist shady place.
  2. Aperture of hydathodes are surrounded by a ring of cuticularized cells.
  3. Subsidiary cells are absent.,

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