Is Nutrient agar considered to be synthetic medium?

Answer 1

Yes, Nutrient agar considered to be synthetic medium. Because Agar is a cultural medium.
Agar is an unbranched polysaccharide obtained from the cell walls of some species of red algae or seaweed. The word agar comes from the Malay word agar-agar (meaning jelly). It is also known as kanten or agal-agal (Ceylon agar). Chemically, agar is a polymer made up of subunits of the sugar galactose. Agar polysaccharides serve as the primary structural support for the algae's cell walls. Dissolved in hot water and cooled, agar becomes gelatinous. Its chief use is as a culture medium for microbiological work. Other uses are as a laxative, a vegetarian gelatin substitute, a thickener for soups, in jellies, ice cream and Japanese desserts such as anmitsu, as a clarifying agent in brewing, and for paper sizing fabrics.

Nutrient agar is used throughout the world as a medium for the growth of bacteria and fungi, but not viruses (however, viruses are often grown in bacteria that are growing on agar). Though less than 1% of all existing bacteria can be grown successfully, the basic agar formula can be used to grow most of the microbes whose needs are known. More specific nutrient agars are available, because microbes can be picky. For example, blood agar, which is generally combined with horse blood, can be used to detect the presence of haemorrhagic micro-organisms such as E.coli O:157 H:7. The bacteria digest the blood, turning the plate clear
Selective media is agar specially treated to apply a selective pressure to organisms growing on it -- for example, to select for salt-tolerant, gram-positive, or gram-negative bacteria. To select for only gram negative organisms you would use MacConkey agar, which would also in turn tell you if the gram negative organism is a lactose fermenter or not indicated by red colonies instead of translucent (non- lactose fermenter).


There are several ways to make NA plates, all depending on what you have to start with. The well equipped person has clean and sterile empty petri plates, and a bottle of NA powder sitting on the shelf. That person needs only to follow the directions on the bottle

Answer 2

Synthetic medium is any medium that is not the natural habitat medium used by the organism.

Say, for instance you may use dead bark of trees to cultivate mushrooms or fungi. But, you can use a convenient synthetic medium that is prepared to mimic the natural medium.
One such synthetic medium is Nutrient Agar.

Answer 3

This is a microbiology question, and as such nutrient agar is defined as a complex or undefined medium. Please see below:


# Non-synthetic [chemically undefined] medium

1. Chemically undefined ingredient:
1. Non-synthetic medium contains at least one component that is neither purified nor completely characterized nor even completely consistent from batch to batch.
2. Often these are partially digested proteins from various organismal sources.
3. Nutrient broth, for example, is derived from cultures of yeasts.
2. May be broth or solid.

# Simple non-synthetic medium

1. A simple non-synthetic medium, operationally defined, is capable of meeting the nutrient requirements of organisms requiring relatively few growth factors.

# Complex non-synthetic medium

1. Undefined with more growth factors:
1. A more complex non-synthetic medium, on the other hand, supplies more (additional types of) growth factors.
2. Complex non-synthetic medium are consequently able to support the growth of more fastidious microorganisms than can simple non-synthetic medium.

# Chemically defined [synthetic] medium

1. A chemically defined medium is one prepared from purified ingredients and therefore whose exact composition is known.

Answer 4

NO(synthetic or define media :-a medium whose all the components are known both qualitatively&quantitatively is called defined or sunthetic media .the media which R used 2 grow phototrophs chemoautotropic heterotrophsR good example 4 defined media .... COMPLEX MEDIA :-media dat contain some ingredients of uknown chemicals composition are called complex media .these media R used when the nutritional requirementof the microorganims are not known .D microorgnism req the complex media for their growth are called fastidious orgaism example nutrient agar ,N BROTH,MacConkeys agar ,M broth .

Answer 5

i would say yes, because nutrient agar is any culture medium that uses agar as the gelling agent. hence other components are added inside too, it is synthetic.

Answer 6

Define Nutrient Agar

Answer 7

No

Answer 8

yes, i believe it is