
選修生物II-4-4 植物對外在環境的反應
Authored by 葉東茂 葉東茂
Biology
11th Grade
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23 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
針對影響阿拉伯芥開花的機制,下列選項中何者並無共同參與調控基因的表現以誘導開花?
Answer explanation
解答 C
解析 (C)光合作用主要為進行合成醣類的反應,與基因調節較無直接關聯
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
某一短夜植物分別給予不同光週期的處理,如圖所示,其中R代表用紅光照射,FR代表用遠紅光照射,請問最後會導致開花的處理有幾種?
Answer explanation
解答 B
解析 短夜植物的開花條件,為連續黑暗時間長於臨界夜長即可,其中遠紅光的處理可視為黑暗與抵消紅光作用,故有3種處理可讓該植物開花
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
植物運動的機制,可能是因器官內的細胞有不同生長速率,或者有不同的膨壓變化所造成。下列哪一項運動的機制與其他4項的機制不同?
Answer explanation
解答 C
解析 選項(A)(B)(D)(E)為植物向性的生長反應;選項(C)為傾性的運動反應
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列有關植物體對環境刺激所產生的反應,何者正確?
Answer explanation
解答 B
解析 (A)植物體莖部向光的一側,因生長素含量少,生長較慢 (C)平放的根澱粉體顆粒感受重力大量沉澱在靠地側,導致根的向地性 (D)睡眠運動屬於傾性,與刺激方向無關
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列何種處理方式會提高萵苣種子的萌芽率?
Answer explanation
解答 B
解析 萵苣為光促進萌發種子,因此(A)(C)(D)處理均無法提高光促進種子萌發率上升
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
元旦過後,花農想要讓田裡的各種花卉延後開花時間,好讓各種花卉能在2月14日的西洋情人節上市,以賣得更好的價錢,下列作為中,何者能有效延後開花時間?
Answer explanation
解答 A
解析 (B)短日照植物的開花條件是較長的連續夜長,連續夜長大於臨界夜長,故若是中斷日照時間,並不影響其開花與否的狀態 (C)長日照植物的開花條件恰好和短日照植物相反,故中斷黑夜,反而讓夜長變短,會促進開花 (D)日照時間被中斷,也不影響其開花與否
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根的向地性和莖的背地性均和生長素分布不均有關,然而造成此種分布差異的原因尚未釐清,不過科學家發現Ca2+似乎和生長素分布差異有關。附圖為垂直放置的玉米芽,甲、乙中黑色小方塊含Ca2+,但甲置於延長部,乙置於根帽;丙的白色小方塊含Ca2+抑制劑,抑制Ca2+的移動。關於這組實驗的敘述,何者正確?
Answer explanation
解答 C
解析 (A)延長部本就會吸收Ca2+ (B)有無Ca2+根皆可彎曲 (D)感應部位不在延長部
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