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Name the cells marked by the dot. Slide48.JPG [BLANK-1]

Name the structure marked by the circle. Slide21.JPG [BLANK-1]

Name the tube-like structure marked by the dot. Slide56.JPG [BLANK-1]

Name the layer of the tooth marked by the dot. Slide84.JPG [BLANK-1]

22.  a).  These are 5 TSIA tubes A – E beginning from left to right.  Describe the reactions in tubes B, C, D, and E  only (i.e. skip the 1st tube A).(4pts) b).  Name the sugars and their concentrations in the media (6pts).                          

11.  You were able to identify it as Streptococcus.  What is the next logical step you would perform to speciate it (i.e. into specie)?

6.  What is the difference between Phenol red and Neutral red indicators?.

12.  Your partner however identified it as Staphylococcus.  Name two specific tests you can suggest to her to enable her to speciate the organism (2pts).

1. You have 2 organisms A and B; one is an obligate anaerobe the other is an obligate aerobe.  You have two Nutrient agar plate media that these organisms can grow on.  Outline how you can differentiate which organism is aerobic and which is anaerobic.

18.  What reagent in the DNase Agar Media is the indicator of DNase activity?