... study and identify bacteria has been monumental, as it has given scientists a way to study bacteria independent of their environment. Using methods like the Quadrant Streak Method for Isolation on agar plates allows students and scientists to isolate bacteria and study their physiology and morphology. Another reason using cultures to identify bacteria is important is because it has created a large database ... flow chart. Future tests that would be helpful in learning about the the bacterial species in Unknown 9 would be a Nitrate Reduction test for Bacteria A; S. saprophyticus and an E...

• Word Count: 5182
• Approx Pages: 21
• Has Bibliography

... was streaked off of the bottom of a rock that was planted on the soil, using a sterile cotton swab. The environmental unknown was made pure by streaking colonies onto a trypticase soy agar (TSA) plate until all of the colonies were of uniform morphology. The first TSA plate was incubated at room temperature, 25ï‚°C, for 72 hours then refrigerated at 4ï&sbquo ... then sat a room temperature for 24-48 hours, until the growth was then checked. Once the unknown was pure a single large colony was selected and inoculated onto two tripticase soy agar slants with a screw cap tube for stora...

• Word Count: 1658
• Approx Pages: 7
• Has Bibliography
• Grade Level: High School

... rods. I though I was going to have a difficult time trying to identify one species until I looked at the TSA plate. One of the bacteria gave off a blue-green pigment into the agar, this is only characteristic to one bacterium on the list of specific bacteria we could have. The other bacteria had a cream growth on the TSA plate but a red colony on ... ...

• Word Count: 765
• Approx Pages: 3
• Grade Level: High School