A Petri dish is a flat-lidded dish, typically $${}10$$-$${}11$$ centimeters (cm) in diameter and $${}1$$-$${}1.5$$ cm high, made out of either plastic or glass. In a microbiology lab, Petri dishes are used to hold growth media for cultivating microorganisms.

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Microbial culturing is a laboratory procedure where a biological sample is placed in special dishes to encourage the growth of microorganisms, such as bacteria or fungi. Because microorganisms require time to reproduce into sufficient quantities, it can take a while before they can be effectively detected and analyzed.

Microbial Culturing

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

Petri Dish

Test tubes are cylindrical plastic or glass tubes with rounded bottoms and open tops. In microbiology, they can be used to grow microbes in broth, as well as in semisolid or solid growth media.

Test Tube

An inoculation loop is a handheld tool that ends in a small wire loop. It is used in microbiology to streak microorganisms on agar in a Petri dish or to transfer them between test tubes. To prevent cultures from becoming contaminated, the inoculation loop must be sterilized before each use.

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