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Why are the bottoms of petri plates labeled rather than the lid?
Wiki User
∙ 15y ago
1) The bottom of the plate contains the agar and your experiment, if the lid gets lost but the bottom is labled you haven't lost any work. If you label the lid and the lid gets lost you won't be able to identify your experiment. You would have to start from the beginning, making plates, sterilizing plates, doing the experiment; perhaps not an option if it were a clinical sample.
2) The plates are placed in the incubator with their bottom half upper most. This is done to prevent droplets of moisture falling from the lid and smearing the culture. As the bottom is upper most when you are looking in the incubator it makes sense to label the bit you can see most easily.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoPetri Dishes are marked on the bottom so that there is no confusion as to the sample number.
Specially when working with patients samples you do not want to mix them up.
As from a quality control point of view petri dishes are marked on the bottom because you can switch the lids.
Wiki User
∙ 11y agoto make the plate identifiable and the Petri plate would constantly be placed with the label faced upward.
Wiki User
∙ 15y agoSo nothing blocks the view.
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What color does Candida fungi appear on Petri plates?
What color is fungi? I need to know because I am trying to do a poem and I need to know what color fungi is. Please help me!!
Which laboratory tool is used for growing live specimens?
If you mean micro organisms than you want agar plates. This is a substance high in general nutrition that is used to grow microorganisms in a petri dish.
What is a petri dish with division?
A petri dish with divisions is . . . used to contain several media selectively and simultaneously.
Why is a Petri dish sealed with sticky tape?
To prevent the microorganisms from getting in the petri dish.
If you use petri dishes for blood do you have to use nutrient agar powder too?
if you use petri dishes do you put nutrient agar in it if your using blood?
Can condensation in petri plates be wiped with a towel?
No. It will contaminate the plates.
How should petri dishes be labeled?
keep it away from ur eyes
Why are petri plates inverted for incubation?
it is to prevent the moisture formed due to condensation of the agar ,to mix with the components present in the petri plates, else causes contamination
Why should you label the petri dishes correctly?
The importance of labeling petri dishes is important. When looking at reaction on specimens or the growth of bacteria of items in a petri dish, if it is labeled incorrectly the data will be wrong and projects could be jeopardized.
What is used to sterilize plastic petri plates in plastic wrapper?
Gamma rays
How did Robert Koch discovery being used today?
The use of agar in petri plates.
Why are inverted plates during incubation?
Because during incubation moisture will form at the top of the petri dish. Inverting the dish prevents it from dropping into whatever you have in the petri dish.
Importance of flaming the edges of the petri plates before and after pouring the media?
It's part of proper sterile procedures as a precaution against contamination of the media by microorganisms that have attached to the edge of the petri dishes since the last sterilization.
What is the value of petri plates in micro biology?
The facecious answer is about 20 cents. Petri dishes are used to grow all manner of micro-organisms using a variety of media (food) for the bugs to grow on. Penicillin was discovered accidently growing on a petri dish this accidental discovery has saved probably 100s of millions of lives.
How does the bacteria remain uncontaminated when the covers slightly ajar after pouring nutrient agar into petri dishes?
This may be a better way to ask this... When pouring Nutrient agar into Petri plates, the procedure instructs you to keep the covers slightly ajar. Explain why the plates don't get contaminated from organisms suspended in the air?
What color does Candida fungi appear on Petri plates?
What color is fungi? I need to know because I am trying to do a poem and I need to know what color fungi is. Please help me!!
What is the birth name of Petri Liski?
Petri Liski's birth name is Petri Juhana Liski.
