Many things can be found by using bacterial culture:
Is this a bacterium in the first place.
In what form does it show on a streak plate.
Does it grow in air or not or both.
Does it grow on everyday medium (nutrient agar) or does it need special medium (fastidious).
What color is it on the medium.
Is it sensitive to various antibiotics.
A bacterial culture containing a single species of organism is referred to as pure or axenic.
is it accurate to use a 3 day old bacterial culture
it depends on the bacterial capsule, some grows on glucose, some grow on carbondioxide and low iron(LIM culture).
Nutrients and oxygen
Red Algae ?
Bacterial culture. Fungal culture. Viral culture
is it accurate to use a 3 day old bacterial culture
A bacterial culture containing a single species of organism is referred to as pure or axenic.
is it accurate to use a 3 day old bacterial culture
It's a bacterial culture.
Yes it is. The bacterial culture is the same.
A blood culture
yes.
it depends on the bacterial capsule, some grows on glucose, some grow on carbondioxide and low iron(LIM culture).
The culture which contain an organism (bacterial colony) which you are required to grow in a broth media that is a media lacking solidifying agent agar. A pure culture should not contain other bacterial or fungal cells in it except the required or cultured one
motility
Nutrients and oxygen