Prokaryotes: Bacteria are one-celled organisms classified as prokaryotes, meaning they lack a nucleus and other membrane-bound organelles. (Source content)
Binary Fission: Asexual reproduction process in bacteria where the cell duplicates its genetic material, elongates, and then pinches in the middle to produce two identical daughter cells. (Source content)
Cell Wall: Most bacteria have a cell wall, a rigid structure that surrounds the cell membrane, providing shape and protection. (Source content)
Antonie van Leeuwenhoek: Dutch scientist who first observed bacteria in the late 1600s, calling them ‘animalcules’ after viewing plaque from his teeth under a microscope. (Source content)
Mutualistic Bacteria: Bacteria that benefit their hosts; for example, Lactobacillus acidophilus helps with digestion. (Source content)
1. How can understanding the composition of bacterial cell walls be applied in clinical microbiology?
2. Who was the first scientist to observe bacteria and what term did he initially use to describe them?
3. When was the division of bacteria into the two kingdoms Archaebacteria and Eubacteria established?
Bacteria — characteristics?
Prokaryotic, single-celled, no nucleus.
Prokaryotes — characteristic?
Lack nucleus and membrane-bound organelles.
Bacterial classification — kingdoms?
Archaebacteria and Eubacteria.
Binary Fission — process?
Asexual reproduction involving genetic duplication.
Bacteria cell wall — feature?
Provides shape and protection.
Antonie van Leeuwenhoek — contribution?
First observed bacteria in the 1600s.
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