10 Questions
What is the main function of the electron transport chain in cellular respiration?
To transfer electrons from NADH or FADH2 to oxygen in order to generate ATP through oxidative phosphorylation.
How is ATP generated in glycolysis and the TCA cycle?
ATP in glycolysis and the TCA cycle is produced through substrate-level phosphorylation.
What is the final electron acceptor in the electron transport chain?
Oxygen (O2) is the terminal electron acceptor in the electron transport chain.
What is the role of NADH and FADH2 in cellular respiration?
NADH and FADH2 carry electrons to the electron transport chain for ATP synthesis.
How is the energy from the proton gradient utilized in ATP synthesis?
The energy from the proton gradient is used by ATP synthase to convert ADP and inorganic phosphate into ATP.
What is the function of the mitochondria in energy metabolism?
Mitochondria are the organelles where most ATP is produced through oxidative phosphorylation.
What are the two main coenzymes that store electrons in cellular respiration?
NADH and FADH2 are the coenzymes that store electrons for the electron transport chain.
Describe the process of oxidative phosphorylation in cellular respiration.
Oxidative phosphorylation involves the coupling of electron transport with ATP synthesis through the proton gradient.
What is the relationship between substrate-level phosphorylation and oxidative phosphorylation in ATP synthesis?
Substrate-level phosphorylation directly synthesizes ATP, while oxidative phosphorylation uses the energy from electron transport to produce ATP.
Explain the significance of the electron transport chain in cellular respiration.
The electron transport chain is crucial for maximizing ATP production by efficiently transferring electrons to generate a proton gradient for ATP synthesis.
This quiz covers topics such as bioenergetics, high energy compounds, biological oxidation, electron transport chain, oxidative phosphorylation, chemiosmotic theory, shuttle pathways, photosynthesis, and light reactions. It also includes a diagram of homeostasis.
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