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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.

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16y ago

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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".


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 might the consequence be of pouring the plates 2mm deep instead of 4mm?

Pouring plates at 2mm depth instead of 4mm could result in a reduced volume of solid agar available for bacterial growth, potentially leading to decreased colony size and difficulty in isolating or visualizing colonies. Additionally, lower volume may lead to faster agar evaporation, potentially drying out the plates more quickly, affecting the overall quality of the experiment.


How do you put grind plates on your heelys?

To put grind plates on your Heelys, first ensure they are the correct size for your shoes. Remove the existing wheels and axles, then attach the grind plates using the provided hardware. Make sure the plates are securely fastened before using them for grinding.


Do tectonic plates make friction?

Yes, tectonic plates can generate friction as they interact with each other along their boundaries. This friction can lead to the plates being locked together for a period of time before eventually releasing in the form of an earthquake.

Related Questions

What might the consequuence be of pouring the plates 2 mm deep instead of 4 mm?

You would break half as many plates by pouring only 2mm worth of plates onto the floor instead of pouring 4mm worth of plates on the floor.


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".


If you have Texas plates and living in Illinois do you have to get Illinois plates?

Yes, you have to get Illinois plates before or when the Texas plates expire.


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?


Application and importance of circles in our daily life?

many uses are there from rings to tyres,discs to plates


What might the consequence be of pouring the plates 2mm deep instead of 4mm?

Pouring plates at 2mm depth instead of 4mm could result in a reduced volume of solid agar available for bacterial growth, potentially leading to decreased colony size and difficulty in isolating or visualizing colonies. Additionally, lower volume may lead to faster agar evaporation, potentially drying out the plates more quickly, affecting the overall quality of the experiment.


Should I remove my plates before a reposseeion and return them to dmv and cancelle insuarnce how does this work.?

NO, the debtor does NOT keep the plates in GA.


maximum weight capacity for dock plates.?

There is no complete maximum capacity for all dock plates, but each one has its capacity. You should be sure to check with your dock plates before doing this.


How old are the Mormon plates?

I assume you are asking about the plates which were translated by Joseph Smith into the Book of Mormon? Those plates were a compilation of four groups of plates - the small and large plates of Nephi, the plates of Mormon, the plates of Ether, and the plates of Brass. The plates of Nephi were written between 580 BC and 321 AD. The plates of Mormon were written between 355 and 421 AD. The plates of Ether were written between 2200 and 300 BC. The plates of Brass were written before the time of the Book of Mormon and contained the writings of Moses, Isaiah, and other Old Testament prophets. Therefore they are from before 600 BC. As Joseph Smith returned the plates to the Angel Moroni following the translation, the actual plates are not in existence on the earth and therefore their ages cannot be determined by scientific means.


What are charger plates typically used for?

Charger plates are used during formal dinners. They are decorative plates that are used not for food, but for effect. They make the table look pretty before the food is served.


Where can one purchase number plate makers?

Number plates are an essential when you have a vehicle, since every vehicle must have one before it can be registered. Personalized number plates are available from Personalized Plates Queensland.


Have you ever sold your car with license plates on?

It is not recommended to sell a car with license plates on it. It is important to remove the license plates before selling the car to avoid any potential legal or security issues.