複選題14. 下圖為兩種植物色素的吸收光譜，有關甲、乙兩色素的敘述，哪些正確？ (A) 植物光系統 II 所含的色素主要是甲，光系統 I 所含的主要是乙 (B) 光合作用進行時，吸收光能最有效率的是色素乙 (C) 一般被子植物皆含有色素甲與色素乙 (D) 未成熟果實中常含有大量的色素甲 (E) 葉綠體中常含有色素甲

複選題

14. 下圖為兩種植物色素的吸收光譜，有關甲、乙兩色素的敘述，哪些正確？

(A) 植物光系統 II 所含的色素主要是甲，光系統 I 所含的主要是乙
(B) 光合作用進行時，吸收光能最有效率的是色素乙
(C) 一般被子植物皆含有色素甲與色素乙
(D) 未成熟果實中常含有大量的色素甲
(E) 葉綠體中常含有色素甲

答案：登入後查看
統計： A(1), B(2), C(4), D(1), E(3) #3834964

詳解 (共 1 筆)

Yu Yu

B1 · 2026/05/28

#7386799

甲--胡蘿蔔素

乙--葉綠素Ａ

ㅤㅤ

（Ａ）光系統I與II主要色素皆為葉綠素Ａ（乙）

（Ｄ）未成熟果實偏綠，胡蘿蔔素（甲）較少

複選題17. Plant hormones (phytohormones) trigger significant physiological changes at extremely low concentrations. Their mechanism of action typically involves the binding of hormone molecules to specific receptors, which activates internal signal transduction pathways to regulate gene expression or enzymatic activity. Based on current understanding of plant hormone signaling, which of the following statements are correct? (A) Each hormone triggers a single, specific physiological response that remains consistent across all tissues and plant species. (B) The same hormone can produce different physiological outcomes depending on the tissue type, developmental stage, and receptor/signaling context. (C) Hormone action is strictly independent of dosage; the physiological outcome is determined only by the presence or absence of the signal. (D) Physiological outcomes are often the result of complex interactions—such as synergy or antagonism—between multiple hormone classes rather than a single isolated signal. (E) Plant hormones act only locally at the site of synthesis and are incapable of functioning as long-distance systemic signals through vascular tissues.

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