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0.1 % agar reduces the diffusion of oxygen into medium and delays dispersion of reducing compounds and carbon dioxide, allowing growth of anaerobes.

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When testing microaerophils some microbiologists prefer to use a semisolid nitrate medium that contains a small amount of agar why is this done?

Microbiologists testing microaerophils prefer to use a semisolid nitrate medium that contains a small amount of agar to get more accurate results. This is also done to speed up the results.


If you have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen The nitrate is reduced to nitrogen gas This bacterium is?

This bacterium is likely a denitrifying bacterium. Denitrifying bacteria are able to use nitrate as a terminal electron acceptor in the absence of oxygen, converting it to nitrogen gas through denitrification.


Why is silver nitrate added to plant tissue culture medium after autoclave?

silver ions will be reducted by sugar to silver metal in high temp autoclave process.


When testing microaerophiles prefer to use a semisolid nitrate medium that contains small amount of agar Why?

Using a semisolid nitrate medium with a small amount of agar allows microaerophiles, which require reduced oxygen levels, to grow without being exposed to high oxygen concentrations due to the agar's ability to create an oxygen gradient. This setup mimics the low-oxygen environments that microaerophiles thrive in and aids in their growth and identification.


What concentration of agar is used in a semisolid medium for motility How does that compare to a typical solid medium?

A concentration of 0.5-0.7% agar is typically used in semisolid medium for motility. This is lower than the typical 1.5-2% agar concentration used in solid medium, allowing motile bacteria to move more easily through the softer semisolid medium.

Related Questions

What is the nitrate broth?

Cultures are grown in beef extract medium containing potassium nitrate. Gases produced from nitrate reduction are captured in Durham tubes placed in the nitrate medium. Answer found in Benson's Microbiological Applications: Laboratory Manual in General Microbiology Eleventh Edition by Alfred E. Brown on page 258.


When testing microaerophils some microbiologists prefer to use a semisolid nitrate medium that contains a small amount of agar why is this done?

Microbiologists testing microaerophils prefer to use a semisolid nitrate medium that contains a small amount of agar to get more accurate results. This is also done to speed up the results.


What is the function of csytoplasm in a plant cell?

It provides a fluid medium that the cell requires to function.


What function of money allows freedom of choice?

medium of exchange


This function allows money freedom of choice?

medium of exchange


What function of money allows freedom of choice.?

medium of exchange


Why frequency of light is not change When it enter from a rarer medium to denser medium?

Frequency is a function of the energy level of the photon. Changing the medium does not change that energy level.


What will result when 1 percent to 5 percent agar is added to nutrient broth boiled and cooled?

a solid medium


Why were mosaics a good artistic medium for conveying a spiritual message?

explain briefly why mosains were a good artistic medium for conveying a spiritual message.


If you have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen The nitrate is reduced to nitrogen gas This bacterium is?

This bacterium is likely a denitrifying bacterium. Denitrifying bacteria are able to use nitrate as a terminal electron acceptor in the absence of oxygen, converting it to nitrogen gas through denitrification.


What is the function of thiogllycollic acid in thioglycollate?

It removes trapped oxygen from the medium


Cels in traditional animation refers to what?

One complete scene image. I think it's short for the medium used (cellulose acetate or cellulose nitrate).