Which of the following is not involved in electron chain transport system?(a) Complexes I, II, II, IV(b) Ubiquinone(c) Cytochrome C(d) All of them are involvedI had been asked this question during an online exam.My question is based upon Mitochondrial Structure and Function in portion Mitochondrial Structure and Function of Cell Biology

Which of the following is not involved in electron chain transport sys

1.	Which of the following is not involved in electron chain transport system?(a) Complexes I, II, II, IV(b) Ubiquinone(c) Cytochrome C(d) All of them are involvedI had been asked this question during an online exam.My question is based upon Mitochondrial Structure and Function in portion Mitochondrial Structure and Function of Cell Biology
Answer» Right choice is (d) All of them are involved To EXPLAIN I would say: Electron CARRIERS can be isolated as part of four distinct, asymmetric, membrane-spanning complexes known as complexes I, II, II and IV. Two of the electron transport CHAIN complexes, Ubiquinone and Cytochrome C are not part of any complexes. Ubiquinone is present as a pool of molecules dissolved in lipid bilayer and Cyt C is SOLUBLE PROTEIN in intermembrane space.

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