BIOLOGY
HORMONES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a hormone that signals dehydration
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a hormone that makes leaves close their stomata to prevent water loss
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a hormone made in chloroplasts
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all of the above
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Detailed explanation-1: -Abstract. Abscisic acid (ABA) is a plant hormone that regulates numerous aspects of plant growth, development, and stress responses.
Detailed explanation-2: -Abscisic acid (ABA) is a key hormone involved in tuning responses to several abiotic stresses and also has remarkable impacts on plant defense against various pathogens. The roles of ABA in plant defense against bacteria and fungi are multifaceted, inducing or reducing defense responses depending on its time of action.
Detailed explanation-3: -Abscisic acid is the plant hormone, which is responsible for dormancy of seeds and inhibition of seeds.
Detailed explanation-4: -Abscisic acid (ABA) is an important phytohormone regulating plant growth, development, and stress responses.
Detailed explanation-5: -(+)-abscisic acid is the naturally occurring (1’S)-(+) enantiomer of abscisic acid. It is an important sesquiterpenoid plant hormone which acts as a regulator of plant responses to environmental stresses such as drought and cold. It has a role as a plant hormone and a plant metabolite.