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The evolutionary advantage that would be there to the formation of a pellicle in a liquid medium by a bacterium is they could form colonies and have a greater chance of survival. Two ways to determine motility of a bacteria is using a agar deep or the hanging drop technique.

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Why do some microorganisms characteristically form a growth of the pellicle type?

in pellicle formation small masses of cells gather at the top of the nutrient broth. these organisms (masses of cells) are aerobes. the oxgen concentration is greatest at the top which would explain growth of the pellicle type.


What is the film of cells at the surface of a broth called?

The film of cells at the surface of a broth is typically referred to as a "pellicle." This pellicle forms as a result of bacterial growth and can be observed in certain bacterial cultures, especially those with aerobic bacteria that form biofilms at the air-liquid interface.


What is importance of pellicle and how to achieve?

A pellicle is a tacky film that forms on the surface of meat when smoking, which helps the smoke flavor adhere better to the meat and helps retain moisture during cooking. To achieve a pellicle, first pat the meat dry with paper towels, then let it sit in the refrigerator uncovered for a few hours to air-dry and allow the pellicle to form before smoking.


What is liquid media in art?

The nutreint media which reamin in liquid form through out the culturing process is called liquid media. It is different to solid media in not having agar in it which is the solidifying agent used in medium prepration. Commonly prepare liquid media is nutrient broth which contain beef extract, partially digest protein (peptones) and sodium chloride.


Short note on types of culture media?

any solid or liquid substance that support the survival & growth of microorganisms is called culture medium.culture medium consists of beef extract,pep tone,yeast extract and distilled water


Full form of media?

Media = medium


Why should you use an inoculating needle when making smears form solid media?

You should use an inoculation needle for making smears from a solid media so you can control how much specimen is put onto a slide. This method is easier for solid media and you would use a loop for liquid media.


What is plural form of liquid?

The plural form of liquid is liquids.


What is the difference between a nutrient broth and media?

Nutrient broth is a liquid medium made of water, peptone, and beef extract used for growing bacteria, while media refers to any substance used to cultivate microorganisms in a lab setting, which can include solid or liquid forms with specific nutrients for microbial growth. In summary, nutrient broth is a type of media specifically designed for bacterial growth in liquid form.


What is black liquid formed from the buried remains of microscopic marine organisms is?

Crude oil comes from these remains but it takes a very long time for them to form.


Is 'medium' the plural form of 'media' when referring to art?

No, media is the plural form of medium.


What is the verb of liquid?

The verb form of the word "liquid" is "liquefy." It means to make something into a liquid form or to become a liquid.