Questions and Answers
What structure in bacterial cells is primarily responsible for movement?
Which of the following structures is responsible for protecting the bacterial cell from being engulfed?
Which part of the bacterial cell regulates the flow of substances in and out of the cell?
What is the function of ribosomes in bacterial cells?
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Where is the genetic material found in bacterial cells?
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Study Notes
Flagella
- Filamentous protein structures attached to the cell surface, providing swimming movement for most motile prokaryotes.
Fimbriae and Pili
- Short, hair-like protein structures on prokaryotic cell surfaces.
Capsule
- An additional outer covering found in some bacterial cells, protecting the cell when engulfed by other organisms.
- Assists in retaining moisture and storing nutrients.
Cell Wall
- Outer covering that protects the bacterial cell and gives it shape.
Cell Membrane or Plasma Membrane
- Surrounds the cell's cytoplasm, regulating the flow of substances in and out of the cell.
Cytoplasm
- A gel-like substance composed mainly of water, containing enzymes, salts, cell components, and various organic molecules.
Ribosomes
- Cell structures responsible for protein production.
Nucleoid Region
- Contains the genetic material (DNA) in a region called the nucleoid.
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Description
Explore the various organelles and structures found in bacterial cells, including flagella, fimbriae, pili, and capsules.
