Bacteria and Bacterial Structure – Bacteria
About the Lecture
The lecture Bacteria and Bacterial Structure – Bacteria by Vincent Racaniello, PhD is from the course Microbiology: Introduction.
Included Quiz Questions
Which of the following is NOT a characteristic of the outer capsule of Gram-negative and Gram-positive bacteria?
- It rotates like a fan and propels the bacteria forward and backward based on energy stores and cellular nutrient requirements.
- It is usually made of amino acids or sugars.
- Its characteristics determine the bacteria's ability to colonize a specific niche, such as an organ or an outside environment.
- It protects the cell from drying out or desiccating.
- It constitutes a defense against the immune system by protecting the bacteria from phagocytic cells.
What is the morphology of E. coli when viewed under a microscope?
- Rods
- Spirals
- Spheres
- Sheets
- Squamose
What is the estimated number of bacteria on Earth?
- 5x10^30
- 5x10^10
- 5x10^20
- 5x10^40
- 5x10^59
Where is most of the genetic material of bacteria located?
- In the nucleoid
- In the nucleus
- In the nucleolus
- In multiple nuclei
The Gram classification of bacteria is based on which characteristic of the bacteria?
- Staining
- Size
- Shape
- Solubility
- Mobility
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Author of lecture Bacteria and Bacterial Structure – Bacteria
Vincent Racaniello, PhD
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