teacher facilitator: melody crowder principal investigator: illiana fernandez co-principal...
TRANSCRIPT
![Page 1: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/1.jpg)
The Effect of Microgravity on the Growth
and pH of Lactobacillus acidophilus
Presidio High School Teacher Facilitator: Melody Crowder
Principal Investigator: Illiana FernandezCo-Principal Investigator- Alvaro Ali Romero
Collaborator- Rafael Sanchez
![Page 2: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/2.jpg)
Lactobacillus acidophilus
• Grows in 5.0-7.0 pH• Reproduces rapidly• Naturally found in the
human intestines
![Page 3: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/3.jpg)
Objective• Test the effects of
microgravity on the growth rate and pH of Lactobacillus acidophilus bacteria.
• Determine if astronauts should be given supplemental probiotics
Hypothesis• The growth rate will
slow down and the pH will increase.
Purpose
![Page 4: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/4.jpg)
Procedure
• Main Volume: Distilled Water• Ampoule A: powdered
lactobacillus acidophilus
and powdered milk.• Ampoule B: Formalin
• The L. acidophilus will be rehydrated in the same time frame in microgravity as our ground truth experiment.
![Page 5: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/5.jpg)
Procedure
Bacteria will be counted and compared to the ground truth experiment.
![Page 6: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/6.jpg)
Limitations
• Remote location of Presidio ISD• Size of FME can not store enough nutrients for 90
days
MEXICO
![Page 7: Teacher Facilitator: Melody Crowder Principal Investigator: Illiana Fernandez Co-Principal Investigator- Alvaro Ali Romero Collaborator- Rafael Sanchez](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649ef15503460f94c0196c/html5/thumbnails/7.jpg)
Real World Applications
• Give supplemental probiotics to astronauts– Aid in production of Vitamin K– Improve digestion and overall health– Supports a healthy immune system