Asked by Sheridan Blanco on Jun 25, 2024
Verified
The carriers of the electron transport chain are located
A) in the matrix of the mitochondria.
B) on the outer mitochondrial membrane.
C) on the cristae of the mitochondria.
D) within the intermembrane space.
E) within the cytoplasm of the cell.
Electron Transport Chain
A series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.
Cristae
Short, fingerlike projections formed by the folding of the inner membrane of mitochondria.
Mitochondria
Organelles within cells that produce energy through the process of cellular respiration, often referred to as the powerhouses of the cell.
- Recognize the mechanisms and importance of glycolysis, the citric acid cycle, and the electron transport chain.
- Gain insight into the role electron carriers play within cellular respiration.
Verified Answer
DD
Deonte DennisJun 28, 2024
Final Answer :
C
Explanation :
The electron transport chain is located on the cristae (folds) of the mitochondrial inner membrane. This is where the carriers of the electron transport chain are located, including complexes I-IV, cytochrome c, and coenzyme Q. The matrix of the mitochondria contains enzymes involved in the citric acid cycle, while the outer mitochondrial membrane is primarily involved in regulating the entry and exit of molecules into and out of the mitochondria. The intermembrane space is the space between the outer and inner mitochondrial membranes, but it does not contain the electron transport chain. The cytoplasm of the cell is where glycolysis occurs, but it is not the location of the electron transport chain.
Learning Objectives
- Recognize the mechanisms and importance of glycolysis, the citric acid cycle, and the electron transport chain.
- Gain insight into the role electron carriers play within cellular respiration.