Re: [請益] 關於生命
看板ask-why (知識奧秘)作者VElysian (家瑀 致中和)時間17年前 (2009/05/14 00:21)推噓14(15推 1噓 72→)留言88則, 10人參與討論串2/14 (看更多)
※ 引述《NOtWorThy (天意不可微 可微則連續)》之銘言:
: 各種生物幾乎都是由原子組成
: 應該說地球上所有物質都由原子構成
: 而原子 分子 ... ... 等等的,都是無生命
: 但卻是組成生物的基本元素
: 原子 分子 長鏈分子 分子結構物 ...
: 為何最會有生命呢? (細胞)
: 關鍵是什麼?
: 越想越覺得生命的偉大
: 感謝大家不吝賜教
關於生命的定義,我想沒必要戰吧?!
猶記得國中生物課本第一頁:
具有繁衍後代能力的,就稱為生物(或生命)。
維基百科好像有比較多的說法:
http://zh.wikipedia.org/w/index.php?title=%E7%94%9F%E5%91%BD&variant=zh-tw
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生命的產生,至今似乎沒有定論;不過倒是有科學家作過研究:
他們將一些分子放入特殊溼度、壓力、物質混和成的試管中,
然後予以通電(這樣可以模擬在特殊環境下的雷擊),
結果發現產生許多的有機物,其中包括蛋白質之類的東東。
^^^^^^
這邊寫錯,是類似胺基酸才對...
雖然這樣可以推測生命很可能是藉由雷擊讓物質產生化學變化而創造生命,
但是呢!還沒有任何實驗證據證明 RNA 或 DNA 等遺傳物質可在自然環境下出現。
換句話說,生命是如何被創造出來的,至今仍是個謎。
至於像人類的高等生物是如何出現的,當然更是個謎囉~
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感謝你看完這篇文章。 ^__^
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將文中蛋白質修正為胺基酸,對於推文並無增刪一字。
※ 編輯: VElysian 來自: 140.130.208.24 (05/14 01:59)
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