試題詳解

12.下列有幾種因子可以影響氣孔打開？
(甲)high potassium ion concentration in guard cell
(乙)high hydrogen ion concentration in guard cell
(丙)high calcium ion concentration in guard cell
(丁) high turgor pressure in guard cell
(戊)blue light on guard cell
(己)high abscisic acid in guard cell
(庚) high carbon dioxide level in environment
(A)7
(B)6
(C)5
(D)4
(E)3