試題詳解

53.Which of the following statements regarding abscisic acid (ABA) is false?
(A) ABA is a plant-specific hormone and does not found in human body.
(B) It is a 15-carbon weak acid terpenoid hormone.
(C) It is found in high concentrations in newly abscissed leaves.
(D) ABA accumulates within seeds during fruit maturation thus preventing premature seed germination.
(E) it is synthesized from carotenoids in a series of reactions in plastids and cytoplasm.