Iron–sulphur clusters in bio logical systems are involved in:a)Proton transferb)Atom transferc)Group transferd)Electron transferCorrect answer is option 'D'. Can you explain this answer?

Question

Iron&#8211;sulphur clusters in bio logical systems are involved in:a)Proton transferb)Atom transferc)Group transferd)Electron transferCorrect answer is option 'D'. Can you explain this answer?

Answer

Ironsulphur clusters in biological systems are involved in electron transfer.

Introduction: Ironsulphur clusters are protein-bound metal cofactors that are ubiquitous in nature. They play a vital role in various enzymatic processes, including electron transfer reactions in biological systems.

Electron transfer: Ironsulphur clusters facilitate electron transfer reactions by serving as electron carriers. They can accept or donate electrons, depending on the redox state of the cluster. Ironsulphur clusters are involved in a wide range of biological electron transfer reactions, including photosynthesis, respiration, and DNA repair.

Structure: Ironsulphur clusters are composed of iron and sulphur atoms that are coordinated by cysteine residues in proteins. The clusters can vary in size and structure, ranging from simple [2Fe-2S] or [4Fe-4S] clusters to more complex clusters that contain additional metal ions and ligands.

Function: The function of ironsulphur clusters in electron transfer reactions is based on their ability to transfer electrons between different redox states. This transfer of electrons is facilitated by the unique electronic properties of the iron and sulphur atoms in the cluster, which allow them to accept or donate electrons in a controlled manner.

Conclusion: In conclusion, ironsulphur clusters are essential components of many biological systems. They play a crucial role in electron transfer reactions, which are vital for energy production, DNA repair, and other cellular processes. Understanding the structure and function of these clusters is essential for developing new therapies for various diseases and for optimizing industrial processes that rely on biological electron transfer reactions.

Answer

Ferredoxin reducing substrate (Fe-S cluster protien) transfers electron from PS-I to Ferredoxin in Z- scheme and in Cyclic photophosphorylation

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