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In which group of organisms are mesosomes found?

Question: In which group of organisms are mesosomes found?

Options:

Algae
Bacteria
Protozoa
Fungi

-✅Explanation: Mesosomes are membrane-bound structures found in bacterial cells. They are thought to be invaginations of the bacterial cell membrane and are involved in processes such as cellular respiration and DNA replication. However, the existence and function of mesosomes have been debated, and some scientists consider them to be artifacts from the preparation process rather than functional structures.

📌Other Options Explanations:
-(a) Algae: Algae are eukaryotic organisms. They have membrane-bound organelles, like chloroplasts.
-(c) Protozoa: Protozoa are also eukaryotic organisms. Instead, they have a complex internal structure with organelles like a nucleus and mitochondria.
-(d) Fungi: Fungal cells have mitochondria for energy production and cell walls different from bacterial membranes.

🔑Key Points:
-Mesosomes was discovered by F. James. 
-Bacterial cell membrane that develops as an ingrowth from the plasma membrane.
-They increase the surface area of the plasma membrane 
-These are functionally mitochondria like structures.
-Mesosomes are present only in Aerobic bacteria.
-The mesosomes are of two types based on position and function.
-Peripheral mesosome- Situated near the cell membrane in the peripheral part and their main function is cell respiration and cell wall secretion. Which is analogous to mitochondria.
-Central mesosomes- Situated in the cytoplasm and their main function is providing help in DNA replication and cell division.

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