酶：生物催化剂文／吕崇在电视节目《正大综艺》中，曾经提出过一个问题：牛和羊在莽莽草原上吃进同样的水草，为什么牛油是黄色的，而羊油却是白色的？主持人解答说：“这是酶作用的结果。”其实，牛、羊及其它食草性动物，虽然吃进的是草，生长的却是肉，挤出来的是奶。... Enzymes: Biocatalyst / Lu Chong In the television program “Chia Tai Variety,” a question has been raised: cattle and sheep eat the same aquatic plants on vast grasslands, why the butter is yellow, and the white buttery ? Moderator answered: “This is the result of the enzyme.” In fact, cattle, sheep and other herbivores, although eating grass, grow meat, squeeze out the milk. ...