A new product has been developed to kill pathogens in drinking water - HSC - SSCE Biology - Question 19 - 2008 - Paper 1
Question 19
A new product has been developed to kill pathogens in drinking water.
Design an experiment to test the effectiveness of the product.
Worked Solution & Example Answer:A new product has been developed to kill pathogens in drinking water - HSC - SSCE Biology - Question 19 - 2008 - Paper 1
Step 1
Identify the goal of the experiment
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The main objective of the experiment is to evaluate the effectiveness of the new product in eliminating pathogens from drinking water.
Step 2
Set up the experimental groups
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Create two groups: one that uses the new product (test group) and another that does not (control group). Both groups should use the same source of contaminated water.
Step 3
Measure the effectiveness
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
After applying the product to the test group, measure the concentration of pathogens in both groups using standardized microbiological methods, such as colony-forming units (CFUs) per milliliter.
Step 4
Analyze results
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Compare the pathogen levels between the test and control groups to determine the product's effectiveness. A significant reduction in pathogens in the test group would indicate that the product is effective.
