Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria...
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Recap of Robot Sampling • Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria • Incubated at 37ºC for 2 days for microbial growth
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Transcript of Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria...
![Page 1: Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria Incubated at 37 ºC for 2 days for microbial growth.](https://reader036.fdocuments.in/reader036/viewer/2022072017/56649f0d5503460f94c2092b/html5/thumbnails/1.jpg)
Recap of Robot Sampling
• Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria
• Incubated at 37ºC for 2 days for microbial growth
![Page 2: Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria Incubated at 37 ºC for 2 days for microbial growth.](https://reader036.fdocuments.in/reader036/viewer/2022072017/56649f0d5503460f94c2092b/html5/thumbnails/2.jpg)
Colony Forming Units (CFU)
• A measure of viable bacterial or fungal numbers
• A single bacterium can grow and become a colony
![Page 3: Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria Incubated at 37 ºC for 2 days for microbial growth.](https://reader036.fdocuments.in/reader036/viewer/2022072017/56649f0d5503460f94c2092b/html5/thumbnails/3.jpg)
Contamination
• Accidental introduction of “foreign” material that can distort the results of an experiment
Could the results show contamination?
How could contamination occur?
![Page 4: Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria Incubated at 37 ºC for 2 days for microbial growth.](https://reader036.fdocuments.in/reader036/viewer/2022072017/56649f0d5503460f94c2092b/html5/thumbnails/4.jpg)
Planetary Protection
• Preventing life from getting from one planet to another and causing harm
• Even with super clean spacecraft, some microbes will always get by
![Page 5: Recap of Robot Sampling Hand, Wheels/Treads, and Soil/Water samples were taken to test for bacteria Incubated at 37 ºC for 2 days for microbial growth.](https://reader036.fdocuments.in/reader036/viewer/2022072017/56649f0d5503460f94c2092b/html5/thumbnails/5.jpg)
Ways to Prevent Contamination
Sterile environment
UV
What else