Answer to Question #119366 in General Chemistry for Gerard Ilagan

Question

6. Coenzyme found in complex I.
7. Coenzyme found in complex II.
8. This major shuttle wherein cytosolic NADH enters ETC via NADH complex I.
9. Minor shuttle as cystolic NADH enters ETC via FADH2 through complex II.
10. What complex wherein chemiosmosis occurs for ATP production?

Answer 1

Complex I is the first enzyme of the mitochondrial electron transport chain. There are three energy-transducing enzymes in the electron transport chain - NADH:ubiquinone oxidoreductase (complex I), Coenzyme Q – cytochrome c reductase (complex III), and cytochrome c oxidase (complex IV).

SdhA contains a covalently attached flavin adenine dinucleotide (FAD) cofactor and the succinate binding site. ... Other factors and cofactors needed for complex II activity are riboflavin, iron, cytochrome b560, and ubiquinone (coenzyme Q).

The generation of ATP by chemiosmosis occurs in mitochondria and chloroplasts, as well as in most bacteria and archaea, an electron transport chain pumps H+ ions in the thylakoid spaces through thylakoid membranes to stroma (fluid).