Which structures perform the function of mitochondria in bacteria? [2014]a)Nucleoidb)Ribosomesc)Cell walld)MesosomesCorrect answer is option 'D'. Can you explain this answer?

Question

Which structures perform the function of mitochondria in bacteria?       [2014]a)Nucleoidb)Ribosomesc)Cell walld)MesosomesCorrect answer is option 'D'. Can you explain this answer?

Answer

The structure of mesosomes consists of the tubules and vessels. These are generally found in the site of cell division. Mesosomes perform the function of mitochondria in bacteria.

Answer

Mesosomes perform the function of mitochondria in (including bacteria) prokaryotic cells. They are characteristic specialisation of cell membrane of bacteria that develop due to the ingrowth of plasma membrane. It consist of vesicles tubules and lamellae.

They are of two types

(i) Septal mesosomes They help in replication of nucleoid by providing point of attachement.

(ii) Lateral mesosomes It contains respiratory enzymes and are often called chondrioid.

Mesosomes are more prominent in from (+)ve bacteria than in Gram (-) ve bacteria.

Answer

Mesosome option D

Answer

Mesosomes

Answer

Mitochondria ke jo bhi functions hai wo bacteria mein mesosomes karta hai it is given in 11 th ncert chapter cell

Answer

Introduction to Bacterial Structures
In bacteria, certain structures perform functions analogous to those of mitochondria in eukaryotic cells. While mitochondria are known as the powerhouse of the cell due to their role in energy production, bacteria lack these organelles. Instead, they utilize other structures to carry out similar functions.
Mesosomes: The Powerhouses of Bacteria
Mesosomes are invaginations of the bacterial plasma membrane that serve several essential roles:

Energy Production: Mesosomes are believed to facilitate cellular respiration and ATP synthesis, akin to the function of mitochondria in eukaryotes.
Increase Surface Area: They increase the surface area of the plasma membrane, enhancing the cell's ability to generate energy and carry out metabolic processes.
Role in Cell Division: Mesosomes may also assist in DNA replication and segregation during bacterial cell division, ensuring that genetic material is properly distributed.
Enzyme Localization: They can serve as sites for the attachment of enzymes involved in respiration and other metabolic pathways.

Conclusion
While mesosomes are not universally accepted as definitive organelles, they play a critical role in the energy metabolism of bacteria, fulfilling a function similar to that of mitochondria in more complex cells. Understanding these structures is essential in the study of bacterial physiology and their energy-producing mechanisms.

Answer

D

Answer

As we all know that mitochondria performs the function of providing energy to the cell in the eukaryotic organisms. So, mesosomes are equivalent in providing energy to the bacteria. It has infoldings in the plasma membrane and mesosomes also helps in respiration in bacteria.

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