BIOL240 Lecture Notes - Teichoic Acid, Yeast Extract, Distilled Water
10 Jan 2013
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Which of the following is not a differentiating factor between prokaryotic and. A new form of microbial life has been discovered. It uses light for energy yet grows on acetate and organic acids. This organism is classified as being a: A) chemoorganoautotroph: chemolithoheterotroph, photoautotroph, photoheterotroph, don"t know. Being small confers certain advantages to microorganisms. A new bacterium that professor neufeld isolated is spiral- shaped. Professor neufeld has prepared a culture medium with: Distilled water 1 l - ph 7. Does this medium contain growth factors: yes, no, not enough information. A serial dilution of a culture is performed. The dilution factor is 103. After 1 ml of diluted solution was included in a pour plate and incubated, 40 colonies grew. How many colony forming units (cfu) per ml were in the original culture: 0. 04, 4, 4000, 40000, need a calculator. Which method(s) could be used: spread plate, pour plate, direct count (with viable stain), a and b, don"t know.
