How do you change the pH of an agar plate?

Question

College biology lab
testing the growth of oral bacteria in different pH's

Answer 1

You would have to make several different batches of the agar before you pour it into plates, and make each batch at a different pH. Once it is poured and solid, there isn't an easy way I know of to alter the pH of the agar without changing the amount of nutrients and stuff in the agar.

Answer 2

Immediately after the agar (which is usually in powdered form) is put into solution, the pH can be adjusted chemically using a pH meter. The agar is then poured into plastic plates to solidify.

Answer 3

guy made medium is any medium that's not the organic habitat medium used via the organism. Say, case in point you may use lifeless bark of trees to domesticate mushrooms or fungi. yet, you ought to use a handy guy made medium this is waiting to imitate the organic medium. One such guy made medium is Nutrient Agar.