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Enzymes located in mitochondrial membran...

Enzymes located in mitochondrial membrane are

A

Enolase and catalase

B

Flavoproteins and cytochromes

C

Hexokinase and zymase

D

Citrate synthetase and glutamate dehydrogenase.

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Mitochondria's Role**: Mitochondria are known as the powerhouse of the cell because they are essential for cellular respiration and energy production. 2. **Identifying the Location of Enzymes**: The enzymes located in the mitochondrial membrane are primarily involved in the electron transport chain (ETC), which is situated on the inner mitochondrial membrane. 3. **Krebs Cycle and Its Products**: The Krebs cycle occurs in the mitochondrial matrix and produces NADH, FADH2, and GTP. These products are then utilized in the electron transport chain. 4. **Components of the Electron Transport Chain**: The electron transport chain consists of various enzymes, including cytochromes and flavoproteins. These enzymes play a crucial role in the process of oxidative phosphorylation. 5. **Oxidative Phosphorylation**: This process involves the formation of ATP through redox reactions, where electrons are transferred, and oxygen acts as the terminal electron acceptor. 6. **Exclusion of Other Enzymes**: Other enzymes mentioned, such as enolase, catalase, hexokinase, zymase, citrate synthetase, and glutamate dehydrogenase, are not located in the mitochondrial membrane. They are involved in different metabolic processes either in the cytoplasm or in specific cellular compartments. 7. **Conclusion**: The enzymes located in the mitochondrial membrane that are associated with the electron transport chain are primarily flavoproteins and cytochromes. **Final Answer**: The enzymes located in the mitochondrial membrane are flavoproteins and cytochromes. ---
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