植物的光合作用通常會因受到光照而被活化。今有一存於葉綠體內部的光合酵素F,其活性會受到pH值及鎂離子濃度的影響如附圖。根據圖中資料,試推測相較於在夜晚期間,葉綠體內部的pH值及鎂離子濃度在白天期間最可能會發生下列哪一種變化?
選修生物II-2段1

Quiz
•
Biology
•
11th Grade
•
Hard
葉東茂 葉東茂
Used 6+ times
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40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
pH值不變,鎂離子濃度不變
pH值下降,鎂離子濃度下降
pH值下降,鎂離子濃度上升
pH值上升,鎂離子濃度下降
pH值上升,鎂離子濃度上升
Answer explanation
答案:(E)
解析:由圖可知,pH值上升、鎂離子濃度上升,光合酵素F的活性也隨之上升。
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Answer explanation
答案:(B)
解析:(A)(C)(D)正確,(B)卡爾文循環主要在白天進行。
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Answer explanation
答案:(B)
解析:大部分的植物氣孔皆於白天開放,晚上關閉;景天科植物為了減少水分散失,改變成白天關,晚上開。(A) C4植物;(B)景天科植物;(C) C3植物;(D)蕨類。
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Answer explanation
答案:(D)
解析:(A)光反應在葉綠體的類囊體膜上進行;(B)卡爾文循環在葉綠體的基質中進行;(C)皆為葉綠素a;(D)正確。
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Answer explanation
答案:(B)
解析:CAM植物一般是生長在沙漠地區。
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Answer explanation
答案:(B)
解析:(A)(C)(D)皆會產生,(B)非光合作用會產生的產物,NADH主要在呼吸作用中。
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