Question

Why are electrical - chemical signals not an efficient means of communication in plants ?

Answer 1

as chemical signals are for quick response thus, they are just useful in multicellular animals and in plants hormones are secreted at one place and their effect is also at distinct places, auxins,giberellins,citokinin and abscisic acid are useful as no quick response is done in plants.there are exceptions like mimosa pubica.



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Answer 2

Unlike animals ,where there is a nervous system for conduction of nerve impulses and circulatory system for conduction of hormones there are no specialised tissues in plants so electrical chemical signals are not an effective means of communication in plants