It looks like you’ve uploaded an image from a Colony Forming Unit (CFU) calculation simulation. The image shows the following data for the calculation of CFU/mL:

• Number of Colonies: 2
• Volume used for Spreading: 0.1 mL
• Dilution Factor: 10³

The result displayed is: $2.0 \times 10^3 \, \text{cfu/mL}$

This result is calculated using the formula: $\text{CFU/mL} = \frac{\text{Number of Colonies}}{\text{Volume used for Spreading} \times \text{Dilution Factor}}$

Given: $\text{Number of Colonies} = 2, \quad \text{Volume} = 0.1 \, \text{mL}, \quad \text{Dilution Factor} = 10^3$ $\text{CFU/mL} = \frac{2}{0.1 \times 10^3} = \frac{2}{100} = 0.02 \times 10^3 = 2.0 \times 10^3 \, \text{cfu/mL}$

Would you like further details on this calculation or have any questions?

Here are 5 related questions:

1. What does CFU represent in microbiology?
2. How does dilution factor affect the CFU calculation?
3. What would happen if you used a different volume for spreading?
4. How can you improve accuracy when counting colonies in a Petri dish?
5. What are the limitations of the CFU method in microbial counting?

Tip: Always ensure proper dilution and spreading technique to get accurate colony counts in microbiology experiments.