Week 15: Glycolysis and Oxidative Phosphorylation, Photosynthesis, & Review Session
Week 15: Glycolysis and Oxidative Phosphorylation, Photosynthesis, & Review Session Bio 107
Popular in Biology
verified elite notetaker
Popular in Biology
This 5 page Class Notes was uploaded by Rachel Johnson on Friday December 11, 2015. The Class Notes belongs to Bio 107 at Washington State University taught by William Davis in Summer 2015. Since its upload, it has received 14 views. For similar materials see Biology in Biology at Washington State University.
Reviews for Week 15: Glycolysis and Oxidative Phosphorylation, Photosynthesis, & Review Session
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 12/11/15
Glycolysis and Oxidative Phosphorylation III Electron Transport Chain 0 v e enter at specific locations Depends on carrier NADH vs FADH2 0 v final stage reduction of 02 to H20 0 v inhibition happens usually due to poison Chemiosmosis 0 v Purpose of ETC is to create a concentration gradient for chemiosmosis H is higher outside the membrane than inside 339 H are moved across the inner membrane against the gradient ATP Synthase 339 Makes the majority of ATP for eukaryotic cells 26 or 28 ATP 339 The movement of H across the membrane moves a rotational part of ATP synthase Leads to ATP synthesis from ADP and P Photosynthesis I Overview of Photosynthesis 339 Reverse of glucose oxidation cellular respiration Uses energy to form glucose instead of glucose to form energy 339 All reactions occur in the chloroplast Light reactions happen in the thylakoid Dark reactions happen in the stroma 339 Two stages Light reactions Make NADPH and ATP for sugar synthesis Makes 02 from H20 oxidation Dark reactions Calvin cycle fix C02 into sugars Uses NADPH and ATP produced from the light reactions Overview of the Calvin Cycle 339 Three phase cycle Phase 1 carbon fixation 3 RuBP BC 3 C02 gt 6 3PG 3C Phase 2 reduction 6 3PG 3C e gt 6 G3P 3C l G3P 3C gt 5 G3P 3C Phase 3 regeneration of RuBP 5 G3P 3C gt 3 RuBP 5C Photosynthesis II Leaves and Light 0 v Leaves appear green due to the absorption of all other visible colors 339 Chlorophylls absorbed red and blue light Creates a high potential energy e e in an excited state Releases energy Heat Not useful forms of energy Fluorescence release a new photon Transfer an e and reduce a neighboring molecule Photosynthetic Electron Transport Chain v e ow from water low energy to NADP high energy Called linear e transport 339 Photosystem II Creates H gradient and 02 339 PhotosystemI Provides energy to e for reduction of NADP 339 Chain of redox reactions Occurs in the thylakoid membranes Resembles ETC in mitochondria Review Session Goal of ETC is to release energy from e in controlled increments Convert e potential energy to chemical H gradient potential energy Energy conversion device H in gradient comes from the disassociation of H20 in the mitochondrial matrix Substrates binding to enzyme temporary same for competitive inhibitors block temporarily Increase substrate can overcome inhibitor because there is a greater chance of the substrate binding than the inhibitor Allosteric inhibitors temporarily close off active site Come and go Nearby molecules colliding with enzyme can knock the inhibitor off H bonds stabilize secondary structures Heat breaks H bonds Phosphorylation adds a negative charge