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Mold colonies on an agar plate?


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Answered 2009-10-12 20:47:41

why would it be advantageours to observe mold colonies on an agar plate

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How do colonies on the surface of a pour plate differ from those suspended in the agar?

How do colonies on the surface of a pour plate differ from those suspended in the agar?


How do the colonies on the surface of the pour plate differ from those suspended in the agar?

The colonies on the surface of a pour plate are obligate aerobes, they need oxygen to grow. The colonies suspended in the agar of the pour plate is facultative anaerobe, where they can live with or without oxygen.


How do you identify a mold on an agar plate?

They have a fuzzy appearance due to the production of spores.


Why Plate Count Agar is used?

it is used to count the colonies


What color does ecoli colonies have on nutrient agar plate?

white colour


Which method often results in colonies developing down throughout the agar and some colonies on the surface?

pour plate


Why growth characteristics are more useful on agar plate than agar slants?

Agar plates have more surface room so colonies can be seen, and so can its morphology.


What is the difference between nutrient agar plate and blood agar plate?

A blood agar plate is a nutrient agar plate that has blood added to it before pouring the plates.


How do the colonies on the surface area of the pour plate differ from the colonies suspended in the agar?

Because of their ability to grow on specific environment & the amount of oxygen needed...(e.g. anaerobes, aerotolerants will grow in agar).


What is the purpose of streaking an agar plate in microbiology?

To separate out the cells so that they produce individual colonies.


What color are the colonies of E Coli when growing on a nutrient agar plate?

whitw to whitish gray


Which method often results in colonies developing down throughout the agar and some s equals colonies on the surface?

pour plate


What are some advantages of an agar plate over a slant tube?

The following are some advantages of an agar plate verses a slant tube: 1. Surface area- An agar plate has a much larger surface area: a. Easier to isolate individual colonies using the streak-plate method. i. Evaluate the colony shape, margin and elevation. b. Can grow a larger number of cells. 2. Growth- An agar plate allows you to quantify the number of colonies on an agar plate, provided it is within the 30-300 range. Whereas the slant tube cannot quantify growth but only describes growth as none, slight, moderate, or large.


Where should a label be written on an agar plate?

On the base of the agar plate.


What does it mean to inoculate an agar plate?

to inoculate an agar plate you would place bacteria on the agar to grow


What are the advantage of an agar plate over a slant tube?

The advantage of the agar plate over the slant is in growing an isolate the bacteria specimens for samples. The slant tube is then used to maintain and grow those isolated colonies.


What is function of agar plate?

Function of the agar plate


What are some uses and advantages of agar plate agar slant and broth culture?

Agar plate is for isolation of bacteria and fungi. A solid surface makes it easy for bacteria to grow into single colonies. Agar slant is for preserving cultures of bacteria. With screw cap tubes, the agar does not dry up easily. The tubes take very small storage space.


If you had to observe the detailed morphology of specise of mold hyphae is it better to use agar plate or henrici slide?

i believe henrici slide


Why should you not dig into agar media with an inoculating loop when making a streak plate?

Because the colonies will run together.


What organism yellow green on blood agar?

Streptococcus pneuomoniae When this organism is tested on a blood agar plate it's colonies will be surrounded by a greenish discoloration due to alpha-hemolysis.


Why did the bacteria grow on the agar plate?

If bateria growson an agar plate it means that the thing that touched the LB Agar or what you swabed was contaminated.


How do you decide which colonies should be picked from a plate culture of a mixed flora?

If you are using a plain agar plate, you will have to guess. It all depends on if you are looking for a bacteria or a fungi.


What is a Mac plate?

MacConkey Agar plate


Why must agar be cooled to 50 degrees?

condensation from moisture will cause colonies in the pour plate method to not isolate properly