Microorganisms play a crucial role in various aspects of our society, such as baking and bioremediation. For example, Saccharomyces cerevisiae is important in baking as it helps produce approximately 7% CO2 during fermentation, vital for bread's texture and volume. In bioremediation, microorganisms like Pseudomonas species can efficiently degrade over 90% of various pollutants in contaminated soil, reducing environmental hazards.