Multiple Choice
In redox reactions, which two types of reactions are often coupled in cells?
6. Chemical Quantities & Aqueous Reactions
Redox Reactions
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In redox reactions within the electron transport chain, which molecule supplies the electrons?
A
NADH
B
ATP
C
Oxygen
D
Carbon dioxide
Verified step by step guidance1
Understand the context of the electron transport chain, which is a series of complexes located in the inner mitochondrial membrane that facilitate the transfer of electrons.
Recognize that redox reactions involve the transfer of electrons from one molecule to another, and these reactions are crucial for the production of ATP in cellular respiration.
Identify the role of NADH in cellular respiration. NADH is a carrier molecule that stores energy in the form of high-energy electrons, which it donates to the electron transport chain.
Consider the process where NADH donates electrons to the first complex in the electron transport chain, initiating a series of redox reactions that ultimately lead to the production of ATP.
Clarify that while ATP is the energy currency produced as a result of the electron transport chain, it is not the molecule that supplies electrons. Oxygen acts as the final electron acceptor, but NADH is the initial electron donor in this process.
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