5 Questions
Who first observed the structures referred to as 'mesosomes'?
George B. Chapman and James Hillier
What are mesosomes or chondrioids in bacteria?
Folded invaginations in the plasma membrane
What were mesosomes initially thought to be involved in?
Cell wall formation during cell division
What is the current understanding of mesosomes in bacterial cells?
They are recognized as artifacts
What are the forms of the extensions of mesosomes in bacterial cells?
Vesicles, tubules and lamellae
Study Notes
Mesosomes in Bacteria
- French scientist Étienne Roux first observed mesosomes in bacteria in 1914.
Structure and Function of Mesosomes
- Mesosomes are also known as chondrioids and are invaginations of the bacterial cell membrane.
- Initially, mesosomes were thought to be involved in cellular respiration, similar to mitochondria in eukaryotic cells.
Current Understanding of Mesosomes
- Current research suggests that mesosomes are not directly involved in cellular respiration, but rather have other functions in bacterial cells.
Forms of Mesosomes
- Mesosomes can exist in various forms, including vesicles, tubules, and lamellae, which are all extensions of the bacterial cell membrane.
Test your knowledge of bacterial cell structure and microscopical artifacts with this quiz on mesosomes and chondrioids. Learn about the history and current understanding of these structures in bacterial cells.
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