Chemical Basis of Life :: essays research papers

Chapter 4The Chemical Basis of LifeIntroduction     Your automobile trunk is an elaborate chemical system.     Chemical signals between brain slight enable your mind to understand what you see.     You nourish those cells with chemicals that argon obtained from food.     Life is on the whole astir(predicate) chemicals and how they interactConcept 4.1Life requires nearly 25 chemical elementsElements      existence and other organisms be examples of matter.Matter Anything that occupies space and has mass. (Physical things)     The various forms of matter are composed of one or more chemical elements.Element A pure substance that cannot be broken down into sm eitherer substances by chemical means     There are 25 elements are of the essence(p) to life. Four of these elements are Oxygen (O), Carbon (C), Hydrogen (H), and Nitrogen (N). The se go for up about 96% of the living matter in your corpse. atomic number 20 (CA), Phosphorus (P), Potassium (K), sulfur (S), and a few other elements write up for most of the remaining 4%.Trace Elements elements that found up little that 0.01 percent of your body mass are nevertheless critical to your health.Compounds      intimately elements can interact with other elements forming complex types of matter called compounds.Compound A substance containing two or more elements that are chemically have in a fixed ratio.     Compounds properties may differ greatly from those of its components.     though simple compounds like sodium chloride and water play important roles in living things, most compounds found in organisms are more complex, containing at least three or four elements.Concept 4.2Chemical properties are based on the structure of atoms.     Different elements have antithetical propertie s.       round are solid metal at room temperature, some are invisible gases, some elements readily match with other elements, whiles others hardly play off at all.      These properties affect the roles that contrasting elements play in biological processes. This segmentation describes how an elements properties to its structure.Atoms     Each element consists of a single kind of atom that is different from the atoms of all other elements.     Atom- gets its name from the Greek word atomos, meaning undividable is the smallest possible Pierceit would take more than tree million degree centigrade atoms to stretch across the period printed at the end of this sentence.     Atoms are all elements are made up of even smaller components called subatomic particles. Proton Is a subatomic particle with a single unit of positive galvanizing charge.Electron is a subatomic particle with a unit of detrimental charge.Neutron is electrically neutral.Nucleus is the center of an atom. It is made up of tightly packed protons and neutrons.     Electrons, which have much less mass than neutrons and protons continually, move about the outdoor(a) of the nucleus at great speed.Chemical Basis of Life essays seek papers Chapter 4The Chemical Basis of LifeIntroduction     Your body is an elaborate chemical system.     Chemical signals between brain less enable your mind to understand what you see.     You nourish those cells with chemicals that are obtained from food.     Life is all about chemicals and how they interactConcept 4.1Life requires about 25 chemical elementsElements      valet and other organisms are examples of matter.Matter Anything that occupies space and has mass. (Physical things)     The various forms of matter are composed of one or more chemical elements.Element A pure substance that cannot be broken down into smaller substances by chemical means     There are 25 elements are inseparable to life. Four of these elements are Oxygen (O), Carbon (C), Hydrogen (H), and Nitrogen (N). These make up about 96% of the living matter in your body. calcium (CA), Phosphorus (P), Potassium (K), sulfur (S), and a few other elements score for most of the remaining 4%.Trace Elements elements that make up less that 0.01 percent of your body mass are nevertheless critical to your health.Compounds      around elements can interact with other elements forming complex types of matter called compounds.Compound A substance containing two or more elements that are chemically feature in a fixed ratio.     Compounds properties may differ greatly from those of its components.     though simple compounds like sodium chloride and water play important roles in living things, most compounds found in organisms are more complex, containing at least three or four elements.Concept 4.2Chemical properties are based on the structure of atoms.     Different elements have different properties.       round are solid metal at room temperature, some are invisible gases, some elements readily react with other elements, whiles others hardly react at all.      These properties affect the roles that different elements play in biological processes. This member describes how an elements properties to its structure.Atoms     Each element consists of a single kind of atom that is different from the atoms of all other elements.     Atom- gets its name from the Greek word atomos, meaning indiscrete is the smallest possible Pierceit would take more than tree million nose candy atoms to stretch across the period printed at the end of this sent ence.     Atoms are all elements are made up of even smaller components called subatomic particles. Proton Is a subatomic particle with a single unit of positive electrical charge.Electron is a subatomic particle with a unit of proscribe charge.Neutron is electrically neutral.Nucleus is the center of an atom. It is made up of tightly packed protons and neutrons.     Electrons, which have much less mass than neutrons and protons continually, move about the foreign of the nucleus at great speed.