What are nutrient using in nutrient agar?

Agar, in agar plates used in culturing bacteria and other microorganisms, consists of a gelling agent, and is an unbranched polysaccharide obtained from the cell walls of some species of red algae,...

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A nutrient agar plate will offer more surface area to culture microbes and allow an easier measurement of growth and the effect of growth inhibitors. While slants simply take up less space.

'Nutrient agar' means any culture medium that uses agar as the gelling agent