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The text highlights key traits of life: chemical complexity, energy extraction and transformation, precise self-replication and self-assembly, sensing and adaptive internal regulation, and defined functions with coordinated interactions. It also places living systems within a history of evolutionary change and emphasizes broad unity alongside extensive diversity across habitats and organisms.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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Foundations 12  \n1.3 Physical Foundations 21  \n1.4 Genetic Foundations 28  \n1.5 Evolutionary Foundations 31  \nWith the cell, biology discovered its atom . . . To characterize life, it was henceforth essential to study the cell and analyze its structure: to single out the common denominators, necessary for the life of every cell; alternatively, to identify differences associated with the performance of special functions.  \n—François Jacob, La logique du vivant: une histoire de l’hérédité  \n(The Logic of Life: A History of Heredity), 1970  \nWe must, however, acknowledge, as it seems to me, that man with all his noble qualities   still bears in his bodily frame the indelible stamp of his lowly origin.  \n—Charles Darwin, The Descent of Man, 1871  \nFifteen to twenty billion years ago, the universe arose  \nas a cataclysmic eruption of hot, energy-rich subatomic particles. Within seconds, the simplest elements (hydrogen and helium) were formed. As the universe expanded and cooled, material condensed under the influence of gravity to form stars. Some stars became enormous and then exploded as supernovae, releasing the energy needed to fuse simpler atomic nuclei into the more complex elements. Thus were produced, over billions of years, the Earth itself and the chemical elements found on the Earth today. About four billion years ago,  \nlife arose—simple microorganisms with the ability to extract energy from organic compounds or from sunlight, which they used to make a vast array of more complex biomolecules from the simple elements and compounds on the Earth’s surface.  \nBiochemistry asks how the remarkable properties of living organisms arise from the thousands of different lifeless biomolecules. When these molecules are isolated and examined individually, they conform to all the physical and chemical laws that describe the behavior of inanimate matter—as do all the processes occurring in living organisms. The study of biochemistry showshow the collections of inanimate molecules that constitute living organisms interact to maintain and perpetuate life animated solely by the physical and chemical laws that govern the nonliving universe.  \nYet organisms possess extraordinary attributes, properties that distinguish them from other collections of matter. What are these distinguishing features of living organisms?  \nA high degree of chemical complexity and microscopic organization. Thousands of different molecules make up a cell’s intricate internal structures (Fig. 1–1a) . Each has its characteristic sequence of subunits, its unique three-dimensional structure, and its highly specific selection of binding partners in the cell.  \nSystems for extracting, transforming, and using energy from the environment (Fig.  \n1–1b), enabling organisms to build and maintain their intricate structures and to do mechanical, chemical, osmotic, and electrical work. Inanimate matter tends, rather, to decay toward a more disordered state, to come to equilibrium with its surroundings.  \n2 Chapter 1 The Foundations of Biochemistry  \n(a)  \n(b)  \n(c)  \nFIGURE 1–1 Some characteristics of living matter. (a) Microscopic  \ncomplexity and organization are apparent in this colorized thin section of vertebrate muscle tissue, viewed with the electron microscope.  \n(b) A prairie falcon acquires nutrients by consuming a smaller bird.  \n(c) Biological reproduction occurs with near-perfect fidelity.  \nA capacity for precise self-replication and self-assembly (Fig. 1–1c) . A single bacterial cell placed in a sterile nutrient medium can give rise to a billion identical “daughter” cells in 24 hours. Each cell contains thousands of different molecules, some extremely complex; yet each bacterium is a faithful copy of the original, its construction directed entirely from information contained within the genetic material of the original cell.  \nMechanisms for sensing and responding to alterations","cbCaikIv3u6gpzBC","https://ap.wps.com/l/cbCaikIv3u6gpzBC","pdf",34662646,1120,"English","# Chapter 1 The Foundations of Biochemistry\n## 1.1 Cellular Foundations\n## 1.2 Chemical Foundations\n## 1.3 Physical Foundations\n## 1.4 Genetic Foundations\n## 1.5 Evolutionary Foundations","[{\"question\":\"What does biochemistry aim to explain?\",\"answer\":\"Biochemistry explains how the properties of living organisms arise from thousands of distinct biomolecules and how these molecules interact to sustain life through physical and chemical laws.\"},{\"question\":\"How does living matter differ from inanimate matter?\",\"answer\":\"Living organisms maintain intricate microscopic organization and do functional work, whereas inanimate matter tends toward increased disorder and equilibrium with surroundings.\"},{\"question\":\"What features of cells support self-replication and self-assembly?\",\"answer\":\"A cell can faithfully reproduce itself by using information encoded in genetic material to construct new molecules and produce identical daughter cells.\"}]","Chapter 1 - The Foundations of Biochemistry - Cellular, Chemical, Physical, Genetic, Evolutionary Foundations | PDF",1789975534,2822]