粒線體在大部份的教科書裡均會被描繪成為橢圓形狀，然而這與事實是完全的背道而馳。545Please respect copyright.ＰＥＮＡＮＡA0EfXQtsuK
粒線體在細胞內並無固定形態，且經常會改變自身的形狀。545Please respect copyright.ＰＥＮＡＮＡoLw0wVpZSJ
545Please respect copyright.ＰＥＮＡＮＡpYyMFCkHvi
545Please respect copyright.ＰＥＮＡＮＡ6z6tj8Jv7d
545Please respect copyright.ＰＥＮＡＮＡLs08CxLgcr
(圖2)圖中的鬼劃符並非是茶餐廳侍應生字體、亦不是醫生字體，而是粒線體的各種倩影。545Please respect copyright.ＰＥＮＡＮＡArgXp1v6dU
545Please respect copyright.ＰＥＮＡＮＡBx6ihTz0wU
545Please respect copyright.ＰＥＮＡＮＡNjVo6KcuMU
由此可見得到粒線體的形象百變，絕非是普通的一個橢圓形這麼簡單。545Please respect copyright.ＰＥＮＡＮＡWId3cLdMKb
545Please respect copyright.ＰＥＮＡＮＡ126PclJTjf
另一點值得注意的是圖中的藍色三角型，它標示著粒線體即將一分為二的位置;545Please respect copyright.ＰＥＮＡＮＡs1ja6P7bl9
有一些處於中間位置，而有一些則位於界乎邊緣的位置。545Please respect copyright.ＰＥＮＡＮＡWYwpVlDGvu
545Please respect copyright.ＰＥＮＡＮＡADMnOxy7BI
545Please respect copyright.ＰＥＮＡＮＡN6ELVByk87
(圖3)橙色框架為粒線體在邊緣位置一分為二，而綠色框架為粒線體在中間位置一分為二。545Please respect copyright.ＰＥＮＡＮＡ3bxd2E67iB
545Please respect copyright.ＰＥＮＡＮＡYkX6NVWBGL
545Please respect copyright.ＰＥＮＡＮＡAMuu5A1ZaJ
兩者的分別究竟是隨機所致，還是別有用心做成的呢?545Please respect copyright.ＰＥＮＡＮＡX5eCcjvdKl
545Please respect copyright.ＰＥＮＡＮＡaPQIgY6afN
(圖4)經過一系列的研究發現，往中間分裂的粒線體為正常運作的粒線體，以一變二從而更有效率為細胞提供能源。545Please respect copyright.ＰＥＮＡＮＡAZEXnosUn3
545Please respect copyright.ＰＥＮＡＮＡyGGkYPQVgg
545Please respect copyright.ＰＥＮＡＮＡpzB2TvPobs
而朝邊緣分裂的粒線體大多是有問題的粒線體，這樣做的目的是提供訊號號令細胞殲滅自己，分解過程涉及名為lysosome的細胞器官，且被稱之為Mitophagy。545Please respect copyright.ＰＥＮＡＮＡKcWiCjLdXX
545Please respect copyright.ＰＥＮＡＮＡ6KUoZxYnGn
有不少證據顯示，若過量的粒線體分裂過程處理失當的話，便會引致神經衰退、心臟問題甚至是癌症等疾病，所以絕對不能看少。545Please respect copyright.ＰＥＮＡＮＡ4ZiK5TqT5k
545Please respect copyright.ＰＥＮＡＮＡXKu1QwhNJv
545Please respect copyright.ＰＥＮＡＮＡR0MjOl6ytH
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。545Please respect copyright.ＰＥＮＡＮＡPpGH0L4erh
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。545Please respect copyright.ＰＥＮＡＮＡvFtMz8WYJB
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio545Please respect copyright.ＰＥＮＡＮＡw6moIHuCfu
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。545Please respect copyright.ＰＥＮＡＮＡQiCtmnX51k
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Ref1:https://www.nature.com/articles/s41586-021-03510-6.epdf?sharing_token=mzsmDs0ANdRBBQvInQMvvtRgN0jAjWel9jnR3ZoTv0OMD04Ej-fby18QAbbYG6vyeMOYV7CCtU3H37dLLVGMhZrbaWwtYnIpOFGd_LqSK3hdGqNlM7t6Rx3bnspU9DQ9gY6z-suKVBlosRUCiyfKgCZhfjCY5-MquoelNTFJO3k%3D
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