QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Where in the cell does the electron transport chain occur?
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1The electron transport chain (ETC) occurs in the inner mitochondrial membrane of eukaryotic cells and the cytoplasmic membrane of prokaryotic cells.
\boxed{\text{Proton Gradient}} \longrightarrow \text{ATP Synthase} \longrightarrow \boxed{\text{ATP}}
In eukaryotic cells, the inner mitochondrial membrane is folded into cristae, which provide a large surface area for the ETC. The ETC is a series of protein complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and this process drives the generation of a proton gradient across the membrane. The flow of protons back across the membrane through ATP synthase leads to the production of ATP, which is the primary energy currency of the cell. **Step 1:** The electron transport chain is a series of protein complexes in the inner mitochondrial membrane of eukaryotic cells. **Step 2:** The ETC is composed of several protein complexes (I, II, III, and IV) that transfer electrons from electron donors to electron acceptors. **Step 3:** The ETC drives the generation of a proton gradient across the inner mitochondrial membrane. **Step 4:** The flow of protons back across the membrane through ATP synthase leads to the production of ATP. **
Final Answer
The electron transport chain occurs in the inner mitochondrial membrane of eukaryotic cells and the cytoplasmic membrane of prokaryotic cells. It is a series of protein complexes that transfer electrons from electron donors to electron acceptors, driving the generation of a proton gradient across the membrane. The flow of protons back across the membrane through ATP synthase leads to the production of ATP, which is the primary energy currency of the cell.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students