Microbial culture techniques

What you'll learn

1. 1

   Imagine you're a scientist growing bacteria on a jelly plate. You need to spread them out so each tiny colony grows separately.

2. 2

   Watch how the bacteria spread. On this plate, tap where you'd place the first streak to start the zigzag pattern.

3. 3

   Let's streak a plate together — step by step.

4. 4

   Why do you sterilise the loop between streaks?

5. 5

   Now you try! On this plate, tap the area where you'd make the SECOND streak after turning the plate 90°.

6. 6

   After streaking, where do individual colonies grow?

7. 7

   What's the main goal of streak plating?