Intro to Microbiology
Welcome to the tiny world of microorganisms! These include bacteria, viruses, fungi, and even single-celled organisms. They are so small you need a microscope to see them!
Microbiology
Viruses
Viruses are tiny particles that need a host to reproduce. They attach to host cells and either burst them open (Lytic Cycle) or sneak their DNA into the host’s DNA and wait for the right moment (Lysogenic Cycle).
Bacteria
Bacteria are single-celled organisms without a nucleus. They reproduce by making clones of themselves. Not all bacteria are bad—some help us digest food and make vitamins!
Fun Facts
Gut bacteria influence our brain, affecting mood and health! This is called the “Gut-Brain Axis.”
Immune System
The immune system fights off pathogens that make us sick. B cells produce antibodies to catch and destroy germs, while T cells hunt down and kill infected cells.
What Microbiologists Do
Microbiologists use tools like microscopes and stains to study microorganisms. Staining is a technique that uses dyes to visualize parts of a cell. Microbiologists have also made many discoveries. A special bacteria in Japan can eat plastic and convert it to food. This bacteria can help clean up the environment.
Conclusion
Microbiology reveals the tiny world that plays a big role in our health and environment!