有机化学教学课件：chpt19.pdf

下载文档 降价啦

1
0
约6.07万字
约 50页
2021-04-05 发布于安徽
举报
版权申诉
保障服务

有机化学教学课件：chpt19.pdf

1、本文档共50页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

第十九章碳水化合物第十九章碳水化合物 Carbohydrates Carbohydrates O O r r g g a a Carbohydrates n n i i c c C C h h Carbohydrates are everywhere in nature. e e m m i i They occur in every living organism and s s t t r r y y are essential to life. The word carbohydrate derives historically from the fact that glucose, has X X i i a a the molecular formula C6H12O6 and was m m e e originally thought to be a “hydrate of n n U U carbon”, C (H O) . 6 2 6 n n i i v v e e r r s s i i t t y y O O r r g g a a n n Today, the term carbohydrate is used to i i c c C C refer loosely to the broad class of h h e e m m polyhydroxylated aldehydes and ketones i i s s t t r commonly call sugars. r y y CHO H OH X X i i a a HO H m m e e n n H OH U U Glucose, n n i i H OH v v a pentahydroxylhexose e e r r s s i CH OH i t t 2 y y O O r r g g Carbohydrates are synthesized by green plants a a n n i i during photosynthesis. c c C C More than 50% of the dry weight of the earth’s h h e e m m biomass consists of glucose polymers. i i s s t t Carbohydrates acts as the chemical r r y y intermediaries by which solar energy is stored and used to support life.