Why in the Practical of Testing the Action of Antibiotics is: 1. Agar Used for the First Stage? 2. The Temperature at 25 Degrees? Is it Different in Industry's?

1. Agar Jelly is the Culture Medium - It has all the Resources like Carbohydrates and Vitamins needed for the Microorganism to Grow 2. 25 Degrees is seen at the School Experiment [Not Trinity School] because then Harmful Pathogens can't Grow really. [This means Temperature is a Variable that needs to be Controlled] -In Industrial Usage, then the Temperature is Higher, for More Growth. Beware though that Too High means the Enzymes in the Microorganisms may Denature