Question

The following statements are false EXCEPT: *The final dilution is always the first tube dilution times 10The final dilution in a serial dilution is the sum total of all the dilutionsThe final dilution in a serial dilution is the product of all the dilutions that led up to it.The final dilution in a serial dilution is the original number multiplied by 100

Answer 1

The correct statement among the provided options is that the final dilution in a serial dilution is the product of all the dilutions that led up to it.

Step-by-step explanation:

Among the given statements about serial dilution, the one that is true is that the final dilution in a serial dilution is the product of all the dilutions that led up to it. Serial dilution involves diluting a fixed volume of cells mixed with dilution solution using the previous dilution as an inoculum, resulting in an exponential decrease in concentration. For example, if the starting dilution is 1:10 and the process is repeated, the following dilutions would be 1:100 (10x10), 1:1000 (10x10x10), and so forth, demonstrating the concept of logarithmic dilution. This procedure is crucial for accurately counting colony-forming units (CFUs) in microbiology.

Answer 2

I think the first answer is correct. The final dilution is always the first dilution times 10.

When diluting, the concentration is reduced by a factor of ten in each step.