
細胞的分裂
Presentation
•
Biology
•
7th - 9th Grade
•
Practice Problem
•
Medium
哲 謝
Used 4+ times
FREE Resource
8 Slides • 8 Questions
1
認識染色體
細胞分裂
減數分裂
細胞的分裂
2
Multiple Choice
遺傳物質位於何處
細胞壁
細胞膜
細胞質
細胞核
3
Reorder
請根據下列構造的體型,由大到小排列
細胞
細胞核
染色體
DNA
4
細胞內的遺傳物質平時呈現細絲狀,在顯微鏡下不容易觀察到。當細胞要進行分裂時,遺傳物質會濃縮纏繞呈短棒狀的構造,稱為染色體。
染色體
5
多少條?
多少對?
人類體細胞中
的染色體
6
Poll
人體體細胞內的染色體有多少條?
23
46
92
184
7
46條(23對)怎麼來的?
46條(23對)
8
即精細胞或卵細胞
生殖細胞
生殖細胞以外的細胞
例如:肌肉細胞、神經細胞、腦細胞
體細胞
9
Multiple Choice
下列何者不屬於體細胞
精細胞
神經細胞
口腔皮膜細胞
腦細胞
10
Fill in the Blanks
11
Fill in the Blanks
Type answer...
12
細胞分裂過程中,母細胞的染色體複製一次、細胞會分裂一次,產生兩個子細胞,子細胞內的染色體數目與母細胞相同。例如:洋蔥根尖細胞內有16 條染色體,經過細胞分裂後產生的兩個子細胞內,仍各自含有16 條染色體
細胞分裂
13
Multiple Choice
關於細胞分裂的過程下列敘述何者正確
複製兩次
分裂兩次
產生兩個細胞
染色體數目減半
14
Multiple Choice
下列何者情形看不到細胞分裂?
傷口復原
胚胎發育
體細胞增生
產生配子
15
行有性生殖的生物體,在形成配子(即精子和卵)的過程中,母細胞內的染色體會複製一次,接著經過兩次分裂,產生四個子細胞。每個子細胞內的染色體數目是母細胞的一半,這種會造成染色體數目減半的分裂方式稱為減數分裂
減數分裂
16
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認識染色體
細胞分裂
減數分裂
細胞的分裂
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