week 4 metabolism
week 4 metabolism BISC207025
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This 2 page Class Notes was uploaded by Anita Rao on Tuesday October 13, 2015. The Class Notes belongs to BISC207025 at University of Delaware taught by Dr. Oyenike Olabisi in Summer 2015. Since its upload, it has received 20 views. For similar materials see Biology in Biological Sciences at University of Delaware.
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Date Created: 10/13/15
Photosynthesis Cellular Respiration Calvin cycle Occurs in animals produces C02 and H20 ruhisco 39 Occur in plants Produces energy for Z Oxidlatlve phosphoryllation the cellll redox reactions Releases 02 Produces glucose Captures energy trorn the sun lHave ETCs Aided by enzymes V Acetyl Co A Produces 32 ATP 39 Occurs in the chloroplast V Occurs in mitochondlria A 39 lLight indlependent andl light dependent parts 39V 02 can he the final acceptor ATP is the body39s energy currency Celllls need energy to do worlc Growth Division Pump ions in and out of cellls Transport vesiclles Synthesize macromolecules such as DNA ENlA proteins andl complex carbohydrates Tissues such as musclle contract 1 ALL THESE ACTIVITIHES ARE CONSiDERED WDlFilK AND IR EOLlllRE EINERGY So how do we get the energy HARVESTING ENERGY Celllls must harvest energy from the environment Alll cellls concert energy to form that can be easilly used for cellullar processes ATP provides energy in a dorm that all cellls can readily use to perform tlhe worllt of tlhe cell lKllNETIC ANID POTlENTlAL ENERGY lMoving objects have kinetic energy because they are performing work Standing objects can possess potential energy heca use it is stored energy lln an atom when electrons are closer to the nucleus they are the most stable The further they are the more potentiall energy they have When they jump orbitalls an excited electron its kinetic energy llMP39O RTANTTlfPES 0F ENIERGllr tight Energy Paclkaged in photons Captured by pigments during photosynthesis to redluce carhon Glycolysis krelbs cycle lcitric I potential V lltinettic lHiglh potential energy tow potential energy and make organic molecules Chemical Energy Stored in the bonds in chemical molecules and can be released when bonds are brollzen Electrical f Ion gradient Energy produced as a result of charge movement or separation An electrochemical gradient formed by difference in ion concentration across the membrane It is a source of potential energy METABOLISM Metabolism includes chemical reactions that convert molecules into other molecules and transfer energy in living organisms Involves the building and breaking clown of carbon sources to harness or release energy Somethings get their energy from the sun and other get it from chemicals to perform metabolic activities In metabolism we have pathways where chemical reactions occur Each step is coordinated by a specific enzyme Catabolic pathways results in breakdown and are exergonic lprovide energy Anabolic pathways build up and are endogenic use energy ATP is tlhe energy currency of the cell ATP adienosine triphosphate Il39he phosphate groups Ihave every high potential energy F h I Electrons lbeing shared covalent linkage bond o o o U l l D39 P D IP D Ila o Phosphate groups Adenine BREAKING BONDS REQUIRE ENERGY FORMIIING BONDS RELEASE ENERGY UH may Ribciao
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