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Questions and Answers
What is the primary component of a Ribosome?
What is the primary component of a Ribosome?
Which structure is composed of phospholipids and proteins?
Which structure is composed of phospholipids and proteins?
What is the main component of the Cell Wall in bacteria?
What is the main component of the Cell Wall in bacteria?
In a bacterium, what structure contains all the necessary genes?
In a bacterium, what structure contains all the necessary genes?
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What is the composition of a Slime Layer in bacteria?
What is the composition of a Slime Layer in bacteria?
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What is the primary function of Pilus in a bacterial cell?
What is the primary function of Pilus in a bacterial cell?
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Which structure in a bacterium serves as a hard protective covering around the cell wall?
Which structure in a bacterium serves as a hard protective covering around the cell wall?
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What is the composition of the Cytoplasm in bacteria?
What is the composition of the Cytoplasm in bacteria?
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Which of the following is a small loop of DNA found in bacterial cells?
Which of the following is a small loop of DNA found in bacterial cells?
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The genome of a bacterium contains all necessary genes, but what is unique about Plasmid DNA compared to the genome?
The genome of a bacterium contains all necessary genes, but what is unique about Plasmid DNA compared to the genome?
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Study Notes
Bacterial Cell Structure
- Ribosomes are composed of RNA and protein and appear as small dots in the cell.
- Flagella are long, tail-like projections.
- Pili are small, sticky projections.
Cell Envelope
- The cell membrane is composed of phospholipids and proteins.
- The cell wall is made of peptidoglycan (a protein-sugar found in eubacteria).
Cellular Components
- Cytoplasm is mostly composed of water and is hypertonic (very salty).
- The slime layer is slimy and made up of carbohydrates, lipids, and proteins.
- The capsule is a hard, protective structure that surrounds the cell wall.
Genetic Material
- The genome is a large loop of DNA that contains all necessary genes for the bacterium.
- Plasmids are small loops of DNA.
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Description
Test your knowledge on the structures found in cells such as ribosomes, flagella, pilus, cell membrane, cell wall, cytoplasm, slime layer, capsule, and genome DNA.
