
ATP Synthase: Proton-powered Rotation
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Science, Chemistry
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary source of ATP under normal conditions?
ATP synthesis
Glycolysis
Fermentation
Photosynthesis
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What creates the electrochemical gradient across the mitochondrial membrane?
The movement of electrons
The pumping of protons
The synthesis of ATP
The breakdown of glucose
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does ATP synthase generate ATP?
By using oxygen
By allowing protons to flow through it
By using light energy
By breaking down glucose
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which subunit of ATP synthase rotates to facilitate ATP production?
Delta subunit
Gamma subunit
Beta subunit
Alpha subunit
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the alpha subunits in ATP synthase?
To bind ADP and phosphate
To pump protons
To rotate and generate energy
To link beta subunits together
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens in the 'open' conformation of the alpha and beta subunits?
ADP and phosphate bind
ATP is released
The gamma subunit rotates
Protons are pumped
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which conformation are ADP and phosphate forced together to form ATP?
Closed
Open
Loose
Tight
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