Petri dish
Videos
A Petri dish is a shallow transparent lidded dish that biologists use to hold growth medium in which cells can be cultured, originally, cells of bacteria, fungi, and small mosses.
A glass Petri dish, Mac Conkey agar and medium
A Petri dish with bacterial colonies on an agar-based growth medium
Axenic cell culture of the plant Physcomitrella patens on an agarplate in a Petri dish
Agar
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Agar, or agar-agar, is a jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae primarily from the Gracilaria genus and the Gelidiaceae family. Th
Petri dish
…Robert Koch at Berlin University. Petri did not invent the culture dish himself; rather, it was a modified version of Koch's invention which used an agar medium developed by Walther Hesse. Koch had published a precursor dish in a booklet in 1881 titled "Zur Untersuchung von Pathogenen Organismen" (On the…
Green tea-flavored yōkan, a popular Japanese red bean jelly made from agar
A blood agar plate used to culture bacteria and diagnose infection
Ogonori, the most common red algae used to make agar
Sago at gulaman in Filipino cuisine is made from agar (gulaman), pearl sago, and sugar syrup flavored with pandan.