EPISODE · Sep 27, 2025 · 7 MIN
2025 biology talkshow:化學消化第一棒-唾液澱粉酶
from 雷比特生物空中講 · host 雷比特老師
詳細介紹唾液澱粉酶（Salivary Amylase），這是一種在口腔中啟動澱粉化學消化的酵素。首先闡述這種酶的歷史重要性，指出它在1833年被發現，是科學史上第一個被分離出來的酶，奠定生物化學的基礎。接著，解釋唾液澱粉酶的工作機制，描述它是如何透過水解反應，將無味的長鏈澱粉剪切成帶有甜味的麥芽糖等小分子。此外還探討影響其活性的環境因素，例如它在攝氏37度和pH 6.7-7.0的條件下活性最佳，但會被胃中的強酸破壞。最後討論澱粉酶基因（AMY1）的基因拷貝數變異與人類祖先高澱粉飲食之間的演化關聯。 聽完後可以自主進行線上測驗，檢視學習成效喔~(需要登入gemini) 測驗網址 https://g.co/gemini/share/ee67f30460a4 Powered by Firstory Hosting
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2025 biology talkshow:化學消化第一棒-唾液澱粉酶
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