Choose the correct path taken by a pair of electrons as they travel down theelectron-transport chain.OA) NADH→Complex CoQ → Complex III → Cyt c→ Complex IV → 02OB) FADH2 → Complex I CoQ - Complex III→O c)Cyt c Complex IV → 02-1NADH Complex I Complex II Complex III02D) FADH2 → Complex II CoQ Complex III → Cyt c → Complex IV → 02OE) A and D.Cyt c Complex IV →-

Electron transport chain consists of a group of protein complexes in the mitochondrial membrane…

Answered: Choose the correct path taken by a pair…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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What Is The Main Purpose Of Oxygen In Cellular Respiration? A)Allowing For The Break Down Of Glucose In Pyruvate B)Suppling Electrons To The Electron Transport Chain C)Allowig For A Flow Of Electrons In The Electron Transport Chain D)Oxidation Of Pyruvate To Acetyl COA
The photosynthetic process used by the green sulfur bacteria, under anaerobic conditions, is best represented by which of the following balanced equations? 6CO2 + 12H2O  C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2S  C6H12O6 + 6S2 + 6H2O C12H22O11 + H2O  C6H12O6 + C6H12O6 C6H12O6 + C6H12O6  C12H22O11 + H2O C6H12O6 + 6O2 + 6H2O  6CO2 + 12H2O
Listed are some hypothetical medical conditions, describe their effect on cellular respiration (specifically refer to the effect they will have on energy production). a) A person is unable to take glucose into their cells. b) A mutation occurs in the ATP synthase protein and it is inactive. c) The mitochondrial inner membrane is very permeable to H+.
Discuss the composition of the transition state for the formation of ATP by ATP Synthase. a) Where is the active site for this enzyme located? b) How are the amino acid side chains from the α and β subunits of ATP Synthase involved? c) Discuss the importance of Mg+2 in the mechanism of this enzyme.
Proton motive force refers to A) the movement of protons across a membrane due to a proton gradient. B) the flow of electrons through an electron transport chain. C) the action of ATPase enzyme. D) oxidative phosphorylation. E) the oxidation of NADH2 and FADH2.
Several of these reactions are energetically unfavorable and will only occur if coupled to a second, energetically favorable reaction? Circle the unfavorable reactions. a) Glucose + 02 → CO2 + H2O b) CO2 + H2O → glucose + 02 c) Nucleoside triphosphates → DNA d) Nucleotide bases → nucleoside triphosphates e) ADP + Pi → ATP
The first half of the Q cycle results in which of the following? Please make each of the following wrong answers correct: A) transfer of 4 protons to the intermembrane space B) 2 molecules of reduced cytochrome c C) Return of one UGH2 to the coenzyme Q pool
A proton gradient is created during the electron transport chain using the energy released from the oxidation of NADH and FADH2. The protons then cross the membrane through ATP synthase down their electrochemical gradient, and ATP is produced. This is an example of A) energy coupling B) cotransport C) allosteric regulation.
14) Which of the following statements is true under the conditions provided: the enzyme concentration is 0.5 nM, substrate concentration is 10 µM, and the KM = 20 µM? a) The enzymatic reaction occurs at maximal velocity. b) The enzymatic reaction occurs between half-maximal and maximal velocity. c) The enzymatic reaction occurs at around half-maximal velocity. d) The enzymatic reaction occurs at between zero and half-maximal velocity. e) Not enough information given to know about the enzymatic reaction rate.
Where is most of the water in this reaction produced? C6H1206 +60₂6CO₂ + 6H₂O O A) A) glycolysis B) electron transport chain C) fermentation OD) TCA cycle
4. The use of ATP to move substances across a plasma membrane of a cell occurs in a) facilitated diffusion b) simple diffusion c) osmosis d) active transport 5. Which of the following is NOT true concerning enzymes? a) they increase the rate at which a reaction proceeds b) enzymes are specific for their substrates c) enzyme names usually end with the suffix “-ase” d) since an enzyme is modified by a reaction, a given enzyme molecule can be used only once 6. DNA is replicated during what part of the cell cycle? a) S phase b) mitosis c) meiosis d) cytokinesis
Which of these process is a common step that happens before both aerobic respiration and anaerobic respiration? A) citric acid (Krebs) cycle B) glycolylcle C) electron transport chain D) All of the above

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