Saturday, October 22, 2011

Lab 9/20: Determined Shape and Color of Bacteria


In lab, we
1.     Inoculated a  broth tube with unknown sample C
2.     Prepared a Streak plate for the unknown sample C to start colony morphology.
3.     Repeated a simple stain for our environmental and unknown sample C.
a.     There are 2 types of stains:
                                                        i.     Acidic, which binds to proteins that are positively chargedà Anionic
                                                       ii.     Basic, which binds to negatively charged nucleic acid and cellular components à Cationic
4.     We determined the shape of our unknown sample C and found that it was:
a.     Cream or tan colored
b.     Circular shape
c. Had Irregular edges



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