Bacterial Culture Media

Nutrient agar or broth, a general purpose medium that supports most common heterotrophic Gram positive and Gram negative

Blood agar supports both Gram positive and Gram negative bacteria; learn what grows, why, and how to interpret colony re

Learn which bacterial mixtures form biofilms, what conditions enable them, and how to predict and test biofilm growth sa

Learn why agar plates grow bacteria: stable gel, uniform surface, minimal nutrients, holds water, supports proper pH and