Biochemistry The branch of science in which you study the chemical and physical process that occur in an organism.Cells Basic structural units of living organismIt is highly organized and constant source of energy is acquired to maintain the order state. Glycolosis Found in almost all organism All organisms use the same type of molecules: oCHOoProteins oLipidsoNucleic AcidsOrganic Compounds Contains carbonContain other elementsFound in organismsExamples:oDNA + Table SugaroMethane + Ethanol Inorganic Compounds Do not usually contain carbonXExamples:oTable Salt + Carbon Dioxide oDiamond + SilverSimilarites:-Chemical Compounds-Made of combination of elementsMatter It classify as elements, compounds and mixturesAnything that occupies space and massAll matter, whether living or nonliving, is made of the same type buildings blocks called ATOMS.Anything that has mass we can measureFour general properties of matter: mass, volume, density and weightAnything that can be touch or felt
Atoms Smallest basic unit of matterAll atoms have the same basic structure.Democritus called these particles atoms Three smaller particles:oProton: a positively charged in atom’s nucleus oNeutron: a neutral(no charge) particle which has about the same needs as a proton and is also in the nucleus.oElectron: a negatively charged particle found outside the nucleus-They are much, much smaller than proton and neutrons.Elements It is a substance (for example: carbon, hydrogen and iron) that consists of identical atoms118 elements are known ; 98 occur in natureOther elements are named for geographic locationsA substance composed of a single atomThe element of an atom is depends on the number of protons in the atom’s nucleus25 different elements are found in organismAtoms of different elements can link or bond together to form compounds.Compounds Is a pure substance made up of two or more elements in a fixed ratio by mass. The properties of compounds are different from those of a mixture of its constituent elements. It is characterized by its formula The formula gives us the ratio’s of the compound’s constituent elements and identifies each element by its atomic symbol Atoms from compounds in two ways: oIonic Bond: consists of ions and forms through the electrical force between oppositely charged ions.