Concept explainers
(a)
Interpretation: To identify whether the list of the electron carrier
Concept introduction: Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule.
There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I:
Complex II:
Complex III:
Complex IV:
An overview of the electron transport chain is as follows:
(a)
Answer to Problem 23.86EP
No, the given order for electron carriers
Explanation of Solution
In the complex, I initially,
(b)
Interpretation: To identify whether the list of the electron carrier
Concept introduction: Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule.
There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I:
Complex II:
Complex III:
Complex IV:
An overview of the electron transport chain is as follows:
(b)
Answer to Problem 23.86EP
Yes, the given order for electron carriers
Explanation of Solution
In the electron transport chain, electrons are transferred from complex I and II to complex III through
(c)
Interpretation: To identify whether the list of the electron carrier
Concept introduction: Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule.
There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I:
Complex II:
Complex III:
Complex IV:
An overview of the electron transport chain is as follows:
(c)
Answer to Problem 23.86EP
Yes, the given order for electron carriers
Explanation of Solution
In complex I, electrons are transferred from the
(d)
Interpretation: To identify whether the list of the electron carrier
Concept introduction: Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule.
There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I:
Complex II:
Complex III:
Complex IV:
An overview of the electron transport chain is as follows:
(d)
Answer to Problem 23.86EP
Yes, the given order for electron carriers
Explanation of Solution
In complex, I initially,
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Chapter 23 Solutions
General, Organic, and Biological Chemistry
- Consider the function of the cofactor FAD. Which of the following makes it unique (different) from NAD+? Select all that apply. a. Can facilitate single electron transfers b. Is associated with an enzyme and not a mobile electron carrier c. Serves to facilitate redox reactions d. s an electron carrier in the TCA cyclearrow_forwardWhich of the following electron carriers are in the reduced form? Note - there may be more than one. A. FAD B. FADH2 C. NAD+ D. NADH E. NADP+arrow_forwardArrange the following in the order they appear in electron transport. a. FAD, coenzyme Q, cytochrome c Ob. FAD, cytochrome c, coenzyme Q Oc. Cytochrome c, FAD, coenzyme Q Od. Coenzyme Q, FAD, cytochrome carrow_forward
- The above product water molecules are generated in which eukaryotic cell compartment?A. the mitochondrial matrix (site of the Krebs cycle)B. the thylakoid membrane of chloroplasts (site of photosystems I and II)C. the chloroplast stroma (site of the Calvin cycle)D. the inner mitochondrial membrane (site of electron transport)E. the cytoplasm (site of glycolysis)arrow_forwardIn chemiosmotic phosphorylation, what is the most direct source of energy that is used to convert ADP + Pi to ATP? A. No external source of energy is required because the reaction is exergonic. B. energy released from high energy electrons given by NADH and FADH2 C. energy released from ATP synthase pumping hydrogen ions from the mitochondrial matrix D. energy released as electrons flow through the electron transport system E. energy released from movement of protons through ATP synthase F. energy released from substrate-level phosphorylationarrow_forwardRapidly dividing cells such as bone marrow, skin, intestinal mucosa, and cancer cells need DNA synthesis. In these cells, the following is observed: a. a decreased NADPH / NADP+ ratio b. increased flux through the oxidative reactions c. Flux through the oxidative reactions is low and the nonoxidative reactions are reversed to make ribose 5-phosphate. d. Ribose 5-phosphate is recycled through the oxidative steps via the nonoxidative reactions and gluconeogenesis. e. Ribose 5-phosphate is shunted into glycolysis by the nonoxidative reactions.arrow_forward
- 1)Where is the most Potential Energy Stored at the end of the Citric Acid Cycle? A. High energy electron NADH B. Electron Tansport chain C. G3P D. ATP molecuoles 2) The movement of several solutes simoultanously a. Simple diffusion b. bulk transport c. Passive trasnsport d. Active Trasnport E. Osmosis 3) What is the source of electrons for photosysthesis? a. Oxygen b. ATP c. water D. Glucose E. Carbon dioxide 3) Movement of several solute acrossss cocentration graidients A. Simple diffusion B. Bulk transpoert C. Passive trasnport D. Active Transport E. Facilitated diffusionarrow_forwardIn chemiosmosis, discover the most direct source of energy that is used to convert ADP + Pi to ATP. * A. energy released as electrons flow through the electron transport system. B. energy released from substrate-level phosphorylation. C. energy released from ATP synthase pumping hydrogen ions against their concentration gradient. D. energy released from movement of protons through ATP synthase.arrow_forwardThe final electron acceptor in the electron transport chain is: a. NADH b. FADH2 c. O2 d. ATParrow_forward
- Which chemical equation represents the breakdown of organic carbon (into inorganic form) thattakes place during glycolysis, the Krebs cycle, and electron transport (aerobic respiration)? A. C6H12O6 + C6H12O6 C12H22O11 + H2OB. 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2OC. C12H22O11 + H2O C6H12O6 + C6H12O6D. C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2OE. all of the abovearrow_forwardin one of the reactions in the electron transport chain, complex I transfer electrons to coenzyme Q. which molecule is reduced and which is oxidized in this reaction? a. complex I is reduced b/c it loses electrons, and Q is oxidized b/c it gains electrons b. complex I is oxidized b/c it loses electrons, and Q is reduced b/c it gains electrons c. complex I is reduced b/c it gains electrons, and Q is oxidized b/c it loses electrons d. complex 1 and Q are both oxidized b/c elections are moved from one molecule to the otherarrow_forwardWhich of the following final electron acceptors is used during anaerobic respiration? a. lactic acid b. pyruvate c. glucose d. nitrate e. waterarrow_forward
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