What term is used to describe an ATP-generating process in which an inorganic su

Question

What term is used to describe an ATP-generating process in which an inorganic substance such as oxygen serves as the ultimate electron acceptor? A) electron transport B) respiration C) fermentation D) anaerobic phosphorylation E) None of the answers is correct. What type of protein makes the outer mitochondrial membrane relatively permeable? A) proton pump B) voltage gated transporter C) A TP-powered pump D) poring E) None of the answers is correct. Which enzyme catalyzes the reduction of oxygen to water? A) ATP synthase B) cytochrome c oxidase C) NADH-Q oxidoreductase D) Q-cytochrome c oxidoreductase E) succinate-Q reductase What prosthetic group is present in complexes I, II, and III of electron transport? A) semiquinone B) flavin mononucleotide C) coenzyme Q D) heme group E) iron-sulfur cluster Which of the citric acid cycle enzymes is also part of an electron-transport complex? A) isocitrate dehydrogenase B) alpha-ketoglutarate dehydrogenase C) succinate dehydrogenase D) malate dehydrogenase E) None of the answers is correct.

Explanation / Answer

1. Answer: - Respiration

In the process of cellular respiration body utilizes the glucose and oxygen to generate ATP and carbon dioxide. This process initiated in glycolysis where glucose gets converted into pyruvate which releases the ATP and NADH.

2. Answer: - Porin

Porins are proteins that found inside the cellular membrane which act as pores. These pores help in the diffusion of different type of molecules across the membrane. These make the outer mitochondrial membrane to be permeable.

3. Answer: - Cytochrome C oxidase

Cytochrome C oxidase enzyme helps in the respiration through electron transport chain in mitochondria. In the process of respiration the reduction of oxygen takes place to generate the ATP and water.

4. Answer: - Iron sulfur cluster

In the mitochondrial electron transport chain the oxidation and reduction reactions carried through cluster of iron and sulfur. Oxidative phosphorylation of complex 1 and 11 has multiple iron and sulphur cluster. These iron sulphur protein regulates the gene expression which affect the protein synthesis.

5.Answer: - Succinate dehydrogenase

This enzyme takes part in the citric acid cycle and electron transport chain.

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