
生物(上)3-2
Biology
7th - 9th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
酵素具有專一性,請問何謂「專一性」?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有甲、乙、丙三種酵素,酵素活性與pH值的關係,如圖的曲線所示。下列敘述何者正確?(pH值<7屬於酸性,pH值=7屬於中性,pH值>7屬於鹼性)
三種酵素的活動情形相同
三種酵素活動時,酵素丙所需之溫度最高
酵素丙的酵素活性最大,酵素乙次之,酵素甲活性最小
酵素甲在酸性,酵素乙、丙在鹼性的環境中酵素活性可以達到最大
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關酵素的敘述,下列何者錯誤?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在人體內進行的化學反應常需要特定的酵素做催化劑,此酵素的主要成分是下列何者?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
酵素的活性會受到其環境影響,請問下列何種酵素其作用環境並不適當?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在「酵素的分解作用」的實驗中,若有如下裝置,則何者經本氏液測定,會呈現藍→綠→黃→紅的顏色反應?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
嘉芬觀察三種酵素的特性如圖曲線,則下列敘述何者正確?
酵素甲只在酸性的環境中活動
酵素甲的活性最差,酵素丙的活性最佳
三種酵素活動時所需之溫度範圍不同
酵素丙只在酸性的環境中活動
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