Sunday, December 1, 2013

Results

Test 1
Blood Agar Plate:
The purpose of this test is to distinguish which bacteria possess the ability to lyse red blood cells.

Result:
Our bacteria showed no lysing of the RBC's. The official name is gamma- hemolysis.
Test 2
EMB (Eosin Methylene):
The purpose of this test is to determine if your bacteria is really gram negative. The gram negative bacteria is indicated by growth on the plate.
Result: It is hard to see, but there is a "wee" dot of growth in this picture! Our bacteria was really tiny, so maybe that was why the growth was barley there? We are not sure, but either way we are definitely positive that our bacteria is gram negative.


Test 3
Mannitol Salt Agar:
This test is used to test the presence of a staph bacteria. Our bacteria was not staphilococcus bacteria. A positive test would yield a growing yellow mass of bacteria.

Test 4
MacConkey Agar
This was to see if our bacteria ferments lactose. The test was positive. I kiddingly called our bacteria a "fat kid" because it really liked sugar :).

Test 5
PEA
This is a selective medium only gram positive bacteria grows on this plate. Our plate was positive, therefore our bacteria is most definitely a gram positive. Okay, we know it doesn't look like it, but because our bacteria is so tiny and I mean TINY, that when it does grow it seems like it hardly grew. 

Test 6
Dnase
This test is to see if bacteria hydrolyzes a lipid. Our test was negative. Our bacteria does not hydrolyze
lipids.

Test 7
Thioglycolate:
This test is to see if our bacteria requires/needs oxygen. We came to the conclusion that our bacteria is facultative because it grew all over the tube.






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