micrometer
(noun)
An SI/MKS unit of measure, the length of one one-millionth of a meter. Symbols: µm, um, rm
Examples of micrometer in the following topics:
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Units of Measurement for Microbes
- The units used to describe objects on a microscopic length scale are most commonly the Micrometer (oi) - one millionth of 1 meter and smaller units.
- Most microbes are around 1 micrometer in size.
- Animal cells are typically around 10 micrometers in size.
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Microbe Size
- To put a numerical value on microbial size, most measurements of microbes are done with the unit of measure of micrometer, which is one millionth of a meter (one 2,500th of an inch).
- These bacteria range in size from 0.2 x 0.5 micrometers to 0.3 x 2.0 micrometers.
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Scanned-Probe Microscopy
- A scan may cover a distance of over 100 micrometers in the x and y directions and 4 micrometers in the z direction.
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Adherence
- Fimbriae are fine filaments of protein, just 3–10 nanometers in diameter and up to several micrometers in length.
- This appendage ranges from 3-10 nanometers in diameter and can be up to several micrometers long.
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Intracellular Pathogens
- They typically range between 1 and 5 micrometers in length.
- The typical fungal spore size is 1 to 40 micrometers in length.
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Rickettsial Diseases
- These bacteria range in size from 0.2 x 0.5 micrometers to 0.3 x 2.0 micrometers.
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Nitrospirae and Deferribacter
- It is a Gram-negative nitrite-oxidizing organism with a helical to vibroid morphology 0.9-2.2 x 0.2-0.4 micrometers in size.
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Filtration
- A syringe filter with a pore size of 0.22 micrometers, small enough to capture and retain bacterial and fungal cells.
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Starvation-Induced Fruiting Bodies
- Migrating towards each other, they aggregate to form fruiting bodies up to 500 micrometers long containing approximately 100,000 bacterial cells.
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Anthrax
- Bacillus anthracis is a rod-shaped, Gram-positive, aerobic bacterium about 1 by 9 micrometers in length.