Top Banner

Click here to load reader

of 14

Electron Transport Chain. NADH and FADH 2 are __________________ These electrons are transferred to a series of components that are found in the inner.

Jan 19, 2018

Download

Documents

Sharon Webb
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript

Electron Transport Chain NADH and FADH 2 are __________________ These electrons are transferred to a series of components that are found in the inner mitochondrial membrane This is known as the _________________________________ Introduction Electron CarrierGlycolysisPyruvate Oxidation Krebs Cycle G3PGlucosePyruvateGlucosePyruvateGlucose NADH FADH 2 Therefore, before we enter the electron transport chain we have: ___________ The ETC is a series of proteins arranged as a chain on the _______of the inner mitochondrial membrane The components of the ETC are arranged in order of increasing electronegativity: starts with the _______ attractor of electrons and ends with the _________ Complexes in the ETC NADH dehydrogenase Ubiquinone (Co-enzyme Q) Cytochrome b-c Cytochrome c Cytochrome oxidase NADH passes its electrons on to Complex I NADH dehydrogenase FADH 2 passes its electrons to Q (shuttle) Proton Pumps Move protons (H + ions) from the ______________into the _________________________ Protons moving ______________(need energy to do this), the __________moving through the complexes provide this energy A proton gradient is created and the energy powers the ATP synthase enzyme- an ATP pump called an __________ 3 proton pumps ___________ NADH passes its electrons on to Complex I NADH dehydrogenase FADH 2 passes its electrons to Q (shuttle) How many protons get pumped for every NADH? _______ How many protons get pumped for every FADH 2 ? _______ Final Electron Acceptor Why do we need oxygen for cellular respiration? ____________________________________________ It takes the _____________from the final proton complex (III) (cyctochrome oxidase) and takes _____________from the matrix and forms _______________ 2e - + 2H + + O 2 H 2 O Chemiosmosis Protons accumulate in the intermembrane space of the mitochondria this creates an electrochemical gradient ____________________________________________ H + (proton) ATP Synthase The protons cannot move through the phospholipid bilayer ____________________________________________ ____________________________________________ Protons move through the ATPase complex and as a result the synthesis of ATP from ADP and P occur in the matrix How many ATP are formed? Start off with 10 NADH: __________________________ Start off with 2 FADH 2 ___________________________ ____________________________ Putting it all together The Electron Transport Chain: _ _________________________ 3. 4._____________________________