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Biochemistry lecture 1

by: Yewande Komolafe

Biochemistry lecture 1 CHEM 351

Marketplace > Chemistry > CHEM 351 > Biochemistry lecture 1
Yewande Komolafe

Biochemistry I
Jackie Brosnan-Cashman

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About this Document

These notes cover what we learned on the first day of class.
Biochemistry I
Jackie Brosnan-Cashman
Class Notes
biochem, biochemistry
25 ?




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This 0 page Class Notes was uploaded by Yewande Komolafe on Friday January 29, 2016. The Class Notes belongs to CHEM 351 at a university taught by Jackie Brosnan-Cashman in Spring 2016. Since its upload, it has received 52 views.


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Date Created: 01/29/16
1282016 Lecture 1 Introduction Bioenergetics and Thermodynamics Biochemistry the chemistry of biology Chemical processes related to within 1 Organization why is it important 0 Organ systems multicellular level 0 Molecular Organelles CELLS REQUIRE ENERGY 2 Homeostasis maintaining stable environment Ph temp affect homeostasis 3 Response to stimuli external plant growing towards the sun and external DNA damage endocrine system hormones Reproductionpassing DNA DNA passed to offspring Inheritance Growth can increase in size if necessary Development brains immune system have developed POFP P F Metabolismthe ability of a cell or organism to carry out chemical changes WILL HEAR A LOT ABOUT METABOLISM THIS SEMESTERtwo types 0 Anabolism synthesis of biological molecules Catabolism the breaking down of biological molecules Molecules that make up life Biological molecules Carbohydrate Lipids Proteins Nucleic s acids subunits monosacchar Glycerol amino nucleotides ide fatty acids acids macromolecu polysaccharid Glycerides protein Nucleic les es acids DNA RNA etc carbs lipids proteins nucleic acids are all carbon based RJ GEWOHE SJcamellia speannintj camway Taste molecules taste different based on organization about the carbon 0 the study of energy as it relates to biological reactions quantitative study of the energy transductions that occur in living cells 0 A transduction us the change in one form of energy to another 0 1 Potential energy energy stored in chemical bonds 0 2 Kinetic energy energy of heat and motion Examples of transduction include building up a protein or any macromolecule overall is the study of energy 1St law Principle of the conservation of energy gt Energy may change form but cannot be created 2nOI law in all natural processes the entropy of the universe increases gt Entropy is disorder Why is that we don t break the second law Ans you need to expend more energy in order for it to get in order It requires more energy to x disorder Reacting systems 1 Open interaction with surroundingsenvironment Our bodies are open systems 2 Closedno interaction between the system and its surroundings done under controlled Constant temp pressure etc A reaction in a lab is closed


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