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How does the bacteria remain uncontaminated when the covers slightly ajar after pouring nutrient agar into petri dishes?
Wiki User
∙ 8y ago
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?
Wiki User
∙ 8y ago
Wiki User
∙ 9y agoTo avoid air-borne contamination, which could alter or even destroy the results.
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What is the process called when you place the bacterial sample on the petri dish?
Inoculation is the process were in you will introduce bacterial samples on a nutrient broth or nutrient agar. If the medium you use contain bacteria it is now called inoculum. there are different technique in introducing bacteria in the medium like streaking, spreading, pouring.
What is alger plates?
Do you mean "agar plates"? Agar agar is a seaweed that, when boiled, makes a product similar to gelatin. This stuff is edible, so vegans who liked jello can have it. It's used by boiling it in water, adding things to it, pouring it into petri dishes and letting it harden to use in making bacteria cultures. Some of the things that are added to it are beef broth--"nutrient agar"--and blood--"blood agar."
Why must warm agar be cooled down at 45 47 celsius before agar plates are poured?
Why we cool agar before pouring depends on WHY we are pouring it. If we are pouring a gel or standard media for streak culture then we allow some cooling to take place because we don't want to burn our fingers. If we are pouring a pour plate we allow a lot of cooling to take place so we don't kill our microbes through heat steralization. As my teacher used to say "boiled bugs don't grow".
What is the difference between nutrient agar culture media and MacConkey agar culture media?
nutrient agar is used generally for culturing any organism.But Muller hinton agar is specifically used for testing antibiotic sensitivity as it does not contain any inhibitory substances for the growh of the organism
What is the meaning of decantatition?
Decantation usually refers to pouring liquid. It can be just pouring liquid from one container to another, or removing the liquid from a solid sediment by pouring the liquid off and leaving the solid behind.
What is the method called when the bacteria sample and nutrient agar are mixed before pouring?
Pour plate method
What is the process called when you place the bacterial sample on the petri dish?
Inoculation is the process were in you will introduce bacterial samples on a nutrient broth or nutrient agar. If the medium you use contain bacteria it is now called inoculum. there are different technique in introducing bacteria in the medium like streaking, spreading, pouring.
Why people got sick after people started pouring started pouring its waste water into the river?
Human waste contains many different bacteria, and bacteria such as cholera happily grow on human feces. Industrial waste contains heavy metals, which can poison the ground where the water meets it and they can also be dispersed via the air.
How do you make homemade weedkiller?
It is with salt or vinegar that homemade weed-killer tends to be made. The salt may be either diluted for pouring or spraying or sprinkled while the white distilled vinegar is diluted heavily or slightly for pouring or spraying the ground.
Why does one temper agar?
It allows the agar to cool, if the agar is too hot it could kill the bacteria if you are pouring it right onto a sample, if you are pouring it into plates to use later it just makes it easier to pour as you will not be burning your hand off
What is alger plates?
Do you mean "agar plates"? Agar agar is a seaweed that, when boiled, makes a product similar to gelatin. This stuff is edible, so vegans who liked jello can have it. It's used by boiling it in water, adding things to it, pouring it into petri dishes and letting it harden to use in making bacteria cultures. Some of the things that are added to it are beef broth--"nutrient agar"--and blood--"blood agar."
Make sentences with the word pouring?
the boy is pouring water away the rain is pouring down
What is a sentence for the word pouring in?
I'm assuming you want the phrase "pouring in" and not just the word "pouring." Rain is pouring in through the hole in the roof. Whenever she takes over a company, money just starts pouring in.
Is pouring spelled right?
Yes, as in pouring a cup of tea.
Why must warm agar be cooled down at 45 47 celsius before agar plates are poured?
Why we cool agar before pouring depends on WHY we are pouring it. If we are pouring a gel or standard media for streak culture then we allow some cooling to take place because we don't want to burn our fingers. If we are pouring a pour plate we allow a lot of cooling to take place so we don't kill our microbes through heat steralization. As my teacher used to say "boiled bugs don't grow".
Which statement is the negation of the following statementThe rain is pouring down.?
The rain is not pouring down.
How do you spell pouring?
That is the correct spelling of "pouring" (dispensing liquid).
