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Chapter 3

细胞进程

什么是蛋白质?
什么是蛋白质?
Overview Proteins are chains of amino acids that are connected by peptide bonds and folded into a 3-dimensional structure. The side chains of individual ...
蛋白质组织结构
蛋白质组织结构
Overview Proteins are one of the fundamental building blocks of life that carry out many diverse functions in the cell. Proteins are assembled from amino ...
蛋白质折叠
蛋白质折叠
Overview Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation which ...
什么是碳水化合物?
什么是碳水化合物?
Overview Carbohydrates are essential biological molecules made of carbon, hydrogen, and oxygen atoms, often in the ratio of 1:2:1. They occur as simple ...
脱水合成
脱水合成
Overview Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new ...
水解
水解
Overview Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides ...
什么是脂类?
什么是脂类?
Overview Lipids are a group of structurally and functionally diverse organic compounds that are insoluble in water. Certain classes of lipids, such as ...
核酸
核酸
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its ...
磷酸二酯键
磷酸二酯键
Overview Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ...
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