生物學(xué)基礎(chǔ)(編輯修改稿)
2025-01-17 22:17 本頁面
【文章內(nèi)容簡介】 核生物細胞 prokaryotic cell一、細胞結(jié)構(gòu) cell大腸桿菌念珠藻小球藻酵母菌火絲菌眼蟲分生組織細胞柵欄組織薄壁細胞驢蹄草葉表皮細胞和保衛(wèi)細胞大鼠肝細胞1腎近曲小管上皮細胞1成纖維細胞1人紅細胞1人精子1哺乳動物的橫紋肌細胞1平滑肌細胞1神經(jīng)細胞體A general prokaryotic cell原核生物細胞結(jié)構(gòu)肽聚糖被膜質(zhì)膜動物細胞植物細胞細胞壁、細胞膜、細胞質(zhì)和細胞核真核生物細胞結(jié)構(gòu)從染色體到DNA人類 23對染色體細胞中的大分子The approximate position of a bacterial cell.Macromolecules in Cells二、糖類作用： 儲存能量 結(jié)構(gòu)材料cellulose 纖維素1. They are important metabolically. Sugars are the major energy storage molecules for living anisms. Their carbon rings contain large amounts of energy. For example, the plete metabolism of glucose: releases 686 kcal/mol. 醣酵解呼吸 are four basic sugars that we will deal with: 三、脂類磷脂 (phospholipids)是構(gòu)成細胞膜 (membranes)的主要成分磷脂是兩性分子，即親水性和疏水性。頭部是帶負電荷的磷酸基團；尾部是疏水性的碳鏈。細胞膜的結(jié)構(gòu)質(zhì)膜磷脂四、蛋白質(zhì)核酸 是遺傳信息的攜帶者蛋白質(zhì) 是信息轉(zhuǎn)化成生物結(jié)構(gòu)和功能的表達者Proteinl Sequencel Structurel Function1)enzyme 2)transport3)cell structure幾大類蛋白質(zhì)l 纖維蛋白l 膜蛋白l 球蛋白 氨基酸an amino end (NH2)a carboxyl end (COOH)Rgroupamino acid20種主要氨基酸的分類8723Structures in the Rgroups of the twenty amino acids found in all living things. Structures in the Rgroups of the twenty amino acids found in all living things. Structures in the Rgroups of the twenty amino acids found in all living things. Structures in the Rgroups of the twenty amino acids found in all living things. Structures in the Rgroups of the twenty amino acids found in all living things. Structures in the Rgroups of the twenty amino acids found in all living things. l 一級結(jié)構(gòu)， Primar
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