Why does cyanide inhibit electron transport but not photosynthesis?O In animals cyanide binding to complex IV blocks electron transport and therefore ATP synthesis, in photosynthesis thiscomplex has other hemes that cyanide cannot bind and therefore is not inhibited.O In animals cyanide binding to complex IV blocks electron transport and therefore ATP synthesis, in photosynthesis thiscomplex is not used and therefore is not inhibited.O In animals cyanide binding to complex IV prevents hydrogen gradient formation and therefore ATP synthesis, inphotosynthesis this complex is not used and therefore is not inhibited.O In animals cyanide binding to complex IV blocks electron transport and therefore ATP synthesis, in photosynthesis usesmultiple complex IVs that cyanide cannot bind and therefore is not inhibited.

The electron transport chain is the last and most important step of cellular respiration as it…

Answered: Why does cyanide inhibit electron…

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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Components of ETC involved in redox reactions are organised from high energy to low energy”. Explain this statement and how does this play a role in transfer of electrons in ETC?
Intermembrane Space Protein Complex of Electron H Carriers ATP Synthase Cyt C NADH NAD FADH FAD 2H + ,0, H,0 Mitochondrial Matrix ADP+ ATP Electron Transport Chain Chemiosmosis Oxidative Phosphorylation 19- Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease? What effect would cyanide have on ATP synthesis? 20. Because they lose their mitochondria during development, red blood cells cannot perform aerobic respiration; however, they do perform glycolysis in the cytoplasm. Why do all cells need an energy source, and what would happen if glycolysis were blocked in a red blood cell? 21. What is the primary difference between a circular pathway and a linear pathway? 22. How do the roles of ubiquinone and cytochrome c differ from the roles of the other components of the electron transport chain? 23. What accounts for the different number of ATP molecules…
synthesis of ATP has a positive delta G release a large amount of energy can be used to drive energetically unfavorable reaction None of the above
Consider the following reaction: glyceraldehyde-3-phosphate + NAD  1,3bisphosphoglycerate + NADH. In this reaction, glyceraldehyde-3-phosphate is ___________. This reaction takes place in ___________. Select one: a. reduced, electron transport chain b. reduced, Citric Acid Cycle c. oxidized, Citric Acid Cycle d. oxidized, electron transport chain e. reduced, Calvin Cycle
the maximum amount of ATP that could be generated by the full oxidation of the compound ((CH3(CH2)4COOH 43 O 45 O 131 O 36 O 129 O
3) The overall reaction for photosynthesis is: 6CO₂ + 6H₂O + ATP C6H₁2O6+ 60₂ (or more accurately 2x C₂H603) a. On this diagram identify where each of these reactants and products are found. b. Why don't you see the water or oxygen in this diagram? C. We can find the electrons from the water on here, where are they? Figure 8.17-3 3 ADP My 32ATP W 3P Phase 3: Regeneration of RuBP RuBP Input 3 as 3 CO₂ Rubisco 5000℗ G3P 300dogoe P 6000℗ 3-Phosphoglycerate Calvin Cycle Phase 1: Carbon fixation 600 10000 G3P Output 6 P G3P 1,3-Bisphosphoglycerate 6 ATP 6 ADP 6 P₁ 6 NADP+ Glucose and other organic compounds 6 NADPH Phase 2: Reduction
Referring to the diagram above, where does pathway "A" occur? Where does pathway "B" occur? Remember to include BOTH prokaryotes and eukaryotes in your answer.
2 ATP + HCO₂ + NH₂ 140 CPS-1 H₂N OPO,2 H₂N 2 ADP, P CH₂ HỘ NHỎ coo 1 0=UN NH₂ P OTC ARG1 H₂O NH₂ H₂H Coo NH CHI CH₂ Coo CH₂ 7 CH₂ HỘ NHĨ coo 4 5 Which of the following is a carbon input to this pathway? (Numbers refer to the above key) 1 2 3 4 None of these is a carbon input NH CH₂ CH₂ CH₂ HỒ NH coo ASL -8---8 CH₂ HỘ NHĨ coo CH ASS ATP PP L-Asp AMP 1 L-ornithine 2 carbamoyl phosphate 3 L-citrulline 4 argininosuccinate 5 fumarate 6 L-arginine 7 urea L-Asp L-aspartate CPS-1 carbamoyl phosphate synthetase I OTC Ornithine transcarbamoylase ASS argininosuccinate synthetase ASL argininosuccinate lyase ARG1 arginase 1 OH OH NH₂
What uncharged substrate molecule is reduced to 2 molecules of water, in the mitochondrial electron transport chain, by the addition of exactly 2 protons and 2 electrons to this molecule (by complex IV)? one molecule of diatomic oxygen gas one molecule of the superoxide free radical one molecule of hydrogen peroxide one molecule of the hydroxyl free radical one molecule of the hydroxide ion
Consider the reaction below. Where would the labelled carbon (represented by the asterisk * in the reactant) end up in the product? CH₂OPO3² NADP+ 44 * OH OH OH as CO2 C-1 C-2 C-3 C-4 C-5 NADPH CO₂ 1 CH₂OH 2 3 :0 CHOH 4 CHOH 5 CH₂OPO3²-
Loss of this enzyme would be lethal to the cell CH₂-CH-CH₂ OH OH Glycerol- phosphate Loss of this enzyme would severely reduce the exchange of lipids between the cytosol and lumen P CH₂-CH-CH₂ O O I =C C=O Loss of this enzyme would lead to membrane phospholipids with identical phosphate head groups Phosphatase Acyl transferase Loss of this enzyme would result in membranes deficient in phosphatidylcholine Choline head Cytosol group ER lumen Choline phosphotransferase Loss of these enzymes would prevent lipid transfer between the ER and mitochondria Flippase lipid exchange proteins
Which of the compounds shown below exhibit a high negative free energy of hydrolysis equal to or larger than the free energy of hydrolysis for the phosphoanhydride of ATP? (Choose all that apply) В Α HPΗ Ho HO HO H2N-CH-C CH2 H2N-CH-C CH2 CH2 H2N-CH-Ö CH2 C CH2 D E O A O B O E O=p-00 O=p-00 O=-00 O=0-00 O=L-00

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