10 Questions
Which enzyme is the terminal component of the chain of respiratory carriers found in mitochondria and transfers electrons resulting from the oxidation of substrate molecules by dehydrogenases to their final acceptor, oxygen?
Cytochrome oxidase
What is the process by which cells derive energy in the form of ATP from the controlled reaction of hydrogen with oxygen to form water?
Respiration
Which group of oxidoreductases transfers two electrons from the donor to oxygen, forming hydrogen peroxide or water?
Oxidases
How many molecules of heme does cytochrome aa3 contain?
Two
Which element is associated with each heme unit in cytochrome aa3?
Copper
What is the process by which cells derive energy in the form of ATP from the controlled reaction of hydrogen with oxygen to form water?
Respiration
Which enzyme is the terminal component of the chain of respiratory carriers found in mitochondria and transfers electrons resulting from the oxidation of substrate molecules by dehydrogenases to their final acceptor, oxygen?
Cytochrome oxidase
Which group of oxidoreductases transfers two electrons from the donor to oxygen, forming hydrogen peroxide or water?
Oxidases
What is the typical heme prosthetic group present in cytochrome oxidase?
Heme with Fe oscillating between Fe3+ and Fe2+
Which element is associated with each heme unit in cytochrome aa3?
Copper (Cu)
Test your knowledge of biological oxidation with this introductory quiz. Explore concepts such as oxidation, reduction, electron transfer, and the role of oxidoreductase enzymes. Perfect for students and enthusiasts of biochemistry and cellular respiration.
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