PORTAGE BIOCHEMISTRY MODULE 8 ACTUAL EXAM WITH QUESTIONS AND CORRECT VERIFIED ANSWERS GRADED A+ || 100% GUARANTEED PASS NEWEST VERSION

PORTAGE BIOCHEMISTRY MODULE 8 ACTUAL EXAM WITH QUESTIONS AND CORRECT VERIFIED ANSWERS GRADED A+ || 100% GUARANTEED PASS NEWEST VERSION NADH donates electrons and H+ to complex ______. - Answer ️1 Which of the ETC complexes do pump H+ ions? - Answer ️complex 1, 3, 4 What protein shuttles electrons from Complex III to Complex IV? - Answer ️cytochrome c What molecule accepts electrons and H+ ions from complexes I and II and transfers them to complex III? - Answer ️CoQ In what portion of the mitochondrion is the ETC located? - Answer ️inner membrane At which complex does the following reaction take place? NADH + H+ + CoQ → NAD+ + CoQH2 - Answer ️complex 1 During the electron transport chain, protons are pumped from _________ in the mitochondria. - Answer ️From the matrix to the intermembrane space Energy released _________________ is utilized for the synthesis of ATP. - Answer ️As protons flow through ATP synthase and back into the mitochondrial matrix The H+ ions flow through what part of the ATP synthase? - Answer ️F0 An individual with the MERRF disease, tend to have symptoms of _________. - Answer ️muscle weakness ATP synthase is located in the __________ of mitochondria. - Answer ️inner membrane What process results in ATP formation? - Answer ️Rotation of ATP synthase Which of the following is not a part of ATP synthase? A. FO B. F1 C. F2 D. Axle E. Stator - Answer ️F2 (Fill in the blanks) Use the word bank to fill in the following blanks. In the word bank, each word or words is separated by semicolons. Words can be used more than once, and not all words will be used. Word bank: ADP and Pi; ATP; GTP; reductive; citric acid cycle; electron transport chain; three; eight; ten Oxidative phosphorylation occurs in ___(A)_____ phases using NADH and FADH2 generated from the ___(B)_____. Oxidative phosphorylation is the synthesis of ____(C)______ from ____(D)_______, using energy generated by the _____(E)______ reactions. - Answer ️A) three B) citric acid cycle C) ATP D) ADP and Pi E) electron transport chain Oxidative phosphorylation occurs in three phases. The first phase is the flow of electrons from NADH and FADH2 to the complexes. What happens after this first phase is complete? Explain in at least four complete sentences. - Answer ️The chemical reactions of the ETC provide energy to pump H+ ions from the mitochondrial matrix into the intermembrane space. The reactions also provide electrons and H+ to convert oxygen into water. The net result is that the H+ gradients permit a flow H+ to rotation ATP synthase, producing ATP. Describe the critical structure of the mitochondrion that are important for the production of ATP. Explain in at least four complete sentences. - Answer ️This organelle is the central hub of energy production in the cell and has a complicated structure, including two membranes. The mitochondrion has an outer membrane and an inner membrane. The outer membrane is a bilayer with porin proteins that permit ions and molecules to cross into the intermembrane space. The intermembrane space is the solution between the outer and inner membranes. The inner membrane is a highly selective bilayer permitting only select ions and molecules to cross. The selectivity is crucial for maintaining specific concentrations of H+, ATP, and other species in the mitochondrial matrix. The inner membrane also contains the electron transport chain's protein complexes, which accepts the electrons from the coenzymes. The matrix is the innermost space of mitochondrion, where the citric acid cycle occurs along portions of fatty acid oxidation and the urea cycle. Once the NADH and FADH2 are produced by the citric acid cycle, they are in proximity to the electron transport chain, so that donation of electrons and hydrogen ions is efficient. true - Answer ️T/F: ATP is invested in the urea cycle. 3 - Answer ️How many total ATP are invested in the urea cycle? false - Answer ️T/F: There are 5 complexes associated with the ETC. 4 - Answer ️How many complexes are associated with the ETC? false - Answer ️T/F: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the intermembrane space. true - Answer ️T/F: In the production of ATP via ATP synthase, the H+ ions move from the intermembrane space to the mitochondrial matrix.