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Transpiration — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyTranspiration1 Mark
Question
Hydathodes are similar to stomata in plant physiology.
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Answer

False
Reason: Hydathodes are special pores present on the ends of leaf veins through which guttation occurs and water droplets are given out. Their openings cannot be regulated. Stomata on the other hand are minute openings in the epidermal layer of leaves through which exchange of gases as well as transpiration occurs. Water is given out as water vapour. Stomatal opening is regulated by guard cells.

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