36 Questions
Which molecule donates two electrons to complex III in the electron transport chain?
CoQH2
What happens to the electron that is sent through Fe-S centers in complex III?
It is dropped to Cyt c1
Which molecule receives an electron from Cyt b in complex III?
CoQ
What is the prosthetic group of cytochromes?
Heme
How many nitrogen atoms are bonded to the iron atom in the porphyrin ring of heme?
4
What happens to the electron that is sent through Cyt b in complex III?
It is dropped to CoQ
What is the function of Cyt c in the electron transport chain?
To transfer electrons between complexes
How many electrons are taken from CoQH2 in complex III?
2
What is the role of Fe-S centers in complex III?
To transfer electrons
What happens to the electron that is sent through Cyt c1 in complex III?
It is dropped to Cyt c
What happens to CoQ after it gains two electrons in complex III?
It is recycled
What is the function of Cyt b in the electron transport chain?
To transfer electrons
Which molecule donates two electrons to complex III in the electron transport chain?
CoQH2
What happens to the electron that is sent through Fe-S centers in complex III?
It is dropped to Cyt c1
Which molecule receives an electron from Cyt b in complex III?
CoQ
What is the prosthetic group of cytochromes?
Heme
How many nitrogen atoms are bonded to the iron atom in the porphyrin ring of heme?
4
What happens to the electron that is sent through Cyt b in complex III?
It is dropped to CoQ
What is the function of Cyt c in the electron transport chain?
To transfer electrons between complexes
How many electrons are taken from CoQH2 in complex III?
2
What is the role of Fe-S centers in complex III?
To transfer electrons
What happens to the electron that is sent through Cyt c1 in complex III?
It is dropped to Cyt c
What happens to CoQ after it gains two electrons in complex III?
It is recycled
What is the function of Cyt b in the electron transport chain?
To transfer electrons
Which molecule donates two electrons to complex III in the electron transport chain?
CoQH2
What happens to the one electron that is sent through Fe-S centers and Cyt c1 in complex III?
It is dropped to the mobile carrier
What happens to the one electron that is sent through Cyt b in complex III?
It is dropped to CoQ
What is the prosthetic group of cytochromes?
Heme
What is the iron atom in heme bonded to?
4 N atoms of the porphyrin ring
How many electrons are taken from CoQH2 in complex III?
2
What is the function of Cyt c1 in complex III?
To drop an electron to the mobile carrier
What is the function of Cyt b in complex III?
To drop an electron to CoQ
What happens to CoQ after it gains 2 electrons in complex III?
It will be recycled
What is the name of the mobile carrier that receives an electron from Cyt c1 in complex III?
Cyt c
What is the name of the mobile carrier that receives an electron from Cyt b in complex III?
CoQ
What is the name of the group of iron-sulfur proteins that are involved in electron transfer in complex III?
Fe-S centers
Test your knowledge on the complex III electron transport chain with this quiz! Learn about the movement of electrons from CoQH2 to cytochrome c, the role of cytochromes with their heme prosthetic groups, and the essential Fe-S centers. Brush up on your understanding of the complex III summary and boost your understanding of electron transport in cellular respiration.
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