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BIOLOGY TOPIC 9 PLANT BIOLOGY (HL)
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Pregunta:
When is the hormone ABA released in plants? (6)
Autor: Sammy UniverseRespuesta:
When a plant begins to wilt from water stress the dehydrated mesophyll cells release ABA = causes K to flow out from guard cells = reduces water P = loses turgor = stomata closes bec the guard cells become flaccid = blocks opening
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Sammy Universe