What is function of mesosome?

Question

Answer

In bacteria help in cellular respiration

Answer

Answer

1. Increase surface area. 2. Enhance respiration (because surface area got increased) 3. Reproduction (helps in conjugation) 4. Enhance metabolic reactions and secretions(by increasing surface area)

Answer

Function of Mesosome

The mesosome is a membrane structure found in prokaryotic cells, specifically in bacteria. It is an invagination or infolding of the plasma membrane that extends into the cytoplasm. Mesosomes have been observed in various shapes and sizes, including tubular, vesicular, and lamellar forms. The function of mesosomes has been a topic of debate among scientists, and several hypotheses have been proposed. While some of these hypotheses have been refuted, there are several generally accepted functions of mesosomes in bacterial cells.

Key Functions of Mesosomes:

1. Cell Division: One of the primary functions attributed to mesosomes is their involvement in cell division. Mesosomes play a crucial role in the formation of the septum during binary fission. They help in the organization and positioning of the division machinery, including the formation of the divisome complex. This ensures proper separation of the replicated chromosomes and cytoplasmic components, leading to the formation of two daughter cells.

2. Respiratory Enzyme Localization: Mesosomes are also believed to be involved in the localization and organization of respiratory enzymes in bacterial cells. These enzymes are responsible for cellular respiration and energy production. The invaginations of the mesosome provide an increased surface area for the attachment and concentration of respiratory enzymes, facilitating efficient ATP synthesis.

3. DNA Replication and Segregation: Mesosomes have been suggested to participate in DNA replication and segregation processes in some bacteria. It has been proposed that the mesosome plays a role in the initiation and elongation of DNA replication by providing a scaffold for the attachment of replication machinery. Additionally, mesosomes may aid in the spatial organization and segregation of replicated DNA molecules during cell division.

4. Protein Secretion: Another proposed function of mesosomes is their involvement in protein secretion. Mesosomes have been observed to contain a high concentration of proteins involved in protein export and secretion. It is hypothesized that the invaginations of the mesosome provide a compartmentalized environment for the efficient synthesis, folding, and export of proteins.

5. Stability and Shape Maintenance: Mesosomes may also contribute to the stability and maintenance of the cell shape in bacteria. The invaginations of the mesosome increase the surface area of the plasma membrane, providing structural support to the cell envelope and preventing cell collapse or distortion.

In conclusion, while the exact function of mesosomes in bacteria is still a topic of research and debate, the current understanding suggests their involvement in cell division, respiratory enzyme localization, DNA replication and segregation, protein secretion, and cell stability. Further studies are required to gain a comprehensive understanding of the precise mechanisms and significance of mesosomes in bacterial cells.

Similar Class 11 Doubts

What is mesosome?

Detoxification of harmful drugs is the function of? 1)RER. 2) SER. 3) LYSOSOME. 4) MITOCHONDRIA. Give me a genuine explanation.?

mesosome is produced by the infolding of

Discussion on L6 : Graphs of functions - Relations and Function, Mathematics, Class 11?

Besides producing secretory vesicles, thefunction of golgibody is

Top Courses for Class 11View all

Chemistry Class 11

CUET Mock Test Series

English Class 11

Chemistry Practice Tests: CUET Preparation

CUET Mock Test: Humanities Subjects 2025

Top Courses for Class 11

Top Courses for Class 11

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams