Podcast
Questions and Answers
Most bacteria are ______: they maintain a single shape
Most bacteria are ______: they maintain a single shape
monomorphic
Some bacteria are ______: they can have many shapes, not just one
Some bacteria are ______: they can have many shapes, not just one
pleomorphic
Bacterial cell come in one of the three shapes: ______ (Sphere)
Bacterial cell come in one of the three shapes: ______ (Sphere)
coccus
Bacterial cell come in one of the three shapes: ______ (Rod)
Bacterial cell come in one of the three shapes: ______ (Rod)
Bacterial cell come in one of the three shapes: ______ (Spiral)
Bacterial cell come in one of the three shapes: ______ (Spiral)
What term is used to describe bacteria that can have many shapes, not just one?
What term is used to describe bacteria that can have many shapes, not just one?
Which term describes the bacteria that maintain a single shape?
Which term describes the bacteria that maintain a single shape?
What is the term for the spherical shape of bacterial cells?
What is the term for the spherical shape of bacterial cells?
Which term is used to describe the rod-shaped bacterial cells?
Which term is used to describe the rod-shaped bacterial cells?
What is the term for the spiral-shaped bacterial cells?
What is the term for the spiral-shaped bacterial cells?
Most bacteria are pleomorphic, meaning they can have many shapes, not just one.
Most bacteria are pleomorphic, meaning they can have many shapes, not just one.
Corynebacterium is an example of spiral-shaped bacterial cells.
Corynebacterium is an example of spiral-shaped bacterial cells.
Streptococcus is an example of rod-shaped bacterial cells.
Streptococcus is an example of rod-shaped bacterial cells.
Sarcina is an example of spherical-shaped bacterial cells.
Sarcina is an example of spherical-shaped bacterial cells.
Bacillus is an example of pleomorphic bacteria.
Bacillus is an example of pleomorphic bacteria.
Study Notes
Bacterial Morphology
- Bacterial morphology is the study of the size, shape, and arrangement of bacterial cells.
- The unit of measurement used in bacteriology is the micron (micrometer), which is one-thousandth of a millimeter.
- The average size of bacteria ranges from 0.5 to 5 µm.
Limitation of Unaided Eye
- The limit of resolution with the unaided eye is about 100 microns.
- Many bacteria are smaller than this size, making them invisible to the naked eye.
Microscope Resolving Power
- The microscope is necessary to observe bacterial cells due to their small size.
- The microscope's resolving power allows for the visualization of bacterial cells beyond the limitation of the unaided eye.
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Description
Test your knowledge of bacterial cell structure, including size, shape, and arrangements. Learn about the unit of measurement used in bacteriology.
