To review:
The practical use of the given reactions and the organism that uses such reactions to obtain energy.
Introduction:
The series of electron carriers that transfer electrons sequentially along the reduction potential is called an electron transport chain. It initiates with the initial electron donor and ultimately all the electrons are transported to a terminal acceptor. In the electron transport chain of oxidative respiration, the electrons are received from NADH (Nicotinamide adenine dinucleotide) and FADH2 (Flavin adenine dinucleotide) and ultimately transferred to O2 (Dioxygen). In the electron transport chain of anaerobic respiration, the terminal electron acceptors are nitrogen, sulfur or any metal ion.
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Microbiology: An Evolving Science (Fourth Edition)
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- Place the following components of the electron-transport chain in their proper order: (a) cytochrome c (b) Q-cytochrome coxidoreductase (c) NADH-Q reductase (d) cytochrome c oxidase (e) ubiquinonearrow_forwardWhat are NADH and FADH2? a. Oxidized coenzymes which carry electrons b. energy-producing organelles c. short-term, socially popular sources of hydrogen gas d. Reduced coenzymes which carry electronsarrow_forwardBriefly, explain why the transfer of electrons from NADH to the ETC results in the production of more ATP molecules than are produced as a result of the transfer of electrons from FADH2? Don't copy from Googlearrow_forward
- Using a DIAGRAM, explain how the COMPLETE oxidation of one molecule of palmitic acid produces 129 ATP molecules in mammalian cells.arrow_forwardWhich of the following statements is a lie?Select one:a.Specific enzymes in the electron transport chain are unaffected by feedback inhibition.b.Elevated levels of ADP will increase pathway activity in the electron transport chain.c.The rate of transport of electrons through the electron transport chain is regulated by feedback inhibition.arrow_forwardWhich of the following is NOT true of the electron transport chain? a. It produces NADH, as a result of electrons being transferred from glucose to NAD+ b. End products include CO2, water, and pyruvate c. It allows for the controlled release of energy for ATP synthesis d. It is part of the oxidative phosphorylation processarrow_forward
- Create an analogy that represents cellular respiration, focusing on the Krebs cycle and the Electron Transport chain. Include these terms while describing the events of the analogy: pyruvate, ATP synthase, ATP, electrons, mitochondria, NAD+/FADH, NADH/FADH2.arrow_forwardUse this analogy "A baker starts with a bowl of dough and eventually turns it into all sorts of goodies" to explain the events of the Krebs Cycle and the Electron Transport Chain.arrow_forwardWhich of the following statements is true? A. The NADH dehydrogenase complex can pump more protons than can the cytochrome b-c1 complex. B. The pH in the mitochondrial matrix is higher than the pH in the intermembrane space. C. The proton concentration gradient and the membrane potential across the inner mitochondrial membrane tend to work against each other in driving protons from the intermembrane space into the matrix. D. The difference in proton concentration across the inner mitochondrial membrane has a much larger effect than the membrane potential on the total proton-motive force.arrow_forward