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10 Oct 2009, 3:15 PM
| #1 (permalink) |
| New Member HSC: 2009 Gender: Female
Join Date: Mar 2009
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17 Nov 2009, 5:08 PM  | agar plate experiment? You can hide this advertisement by registering. need help with this,perform a first hand investigation to identify microbes in food or in water |
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10 Oct 2009, 6:51 PM
| #2 (permalink) |
| New Member HSC: N/A Gender: Undisclosed
Join Date: Mar 2008
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13 Nov 2009, 11:39 PM | Re: agar plate experiment? did you do food or water, or both? basically get an agar plate, and place a few drops of water (creekwater, distilled water, etc) or slightly rub food samples (nut, bread, apple) on the jelly. Put a lid on, tape it up so that nothing else gets in. Incubate it. Then after a few days examine the microbes that grew on it - size, colour, number, etc. We split it into bacteria and fungi which can be easily distiguished. |
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6 Nov 2009, 8:12 PM
| #3 (permalink) |
| Junior Member  HSC: 2010 Gender: Female
Join Date: Mar 2009
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13 Nov 2009, 8:24 PM Blog Entries: 1 | Re: agar plate experiment? Oohh. thank god for this thread. Just got this assessment today!!  Basically, we get to choose either food OR water. I'm choosing water---i have no idea why.. We were given two agar plates and don't have to use one of them as a control. The control plate is in our lab. So i was thinking of using pond water from school ( D: ) and then either bottled water/tap water or boiled water. But i reckon that the boiled water works better as a control.. D: Help and suggests? 
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