Microbiology — bacteria, viruses, fungi

What you'll learn

1. 1

   Imagine a single bacterium as a tiny living cell, like a microscopic balloon filled with jelly, that can split into two every 20 minutes.

2. 2

   Drag the bacterium to double it every 20 minutes — start with 1, then 2, then 4, then 8.

3. 3

   A virus is NOT a cell. It's just a tiny packet of genetic instructions wrapped in a protein coat — it can't reproduce on its own.

4. 4

   Which one is ALIVE and can split to make copies by itself?

5. 5

   Fungi are like tiny mushrooms — they grow as long threads called hyphae and feed by absorbing nutrients from dead things or living hosts.

6. 6

   Which microbe grows as long threads and absorbs food from its surroundings?

7. 7

   Sort each microbe into its group: bacterium, virus, or fungus.