Design and conduct a practical investigation relating to the microbial testing of water or food samples. (1 Viewer)

[teddy123]

Hi, does anyone have a simple method for this dot point? I think I must have missed it in class unless Pasteur's swan neck flask counts. Cheers

 

[mmmm.]

Sample exam question
1. Describe an experiment to investigate organisms in food. (5 -7 marks)

• Main steps of method - Place liquefied food onto agar plates and incubate for 24hours to a week – expand on this.
• Safety – include at least one and reason
• Results (only include if asked for)
• Not at 370C so no human pathogens grow
• Discuss reliability (repeat experiment) and validity (make sure the experiment tests the aim)
• Include fact a control was used

Edit:Check this out https://easyhsc.com.au/home-easyhsc...se/practical-investigation-microbial-testing/

 

[teddy123]

Sample exam question
1. Describe an experiment to investigate organisms in food. (5 -7 marks)

• Main steps of method - Place liquefied food onto agar plates and incubate for 24hours to a week – expand on this.
• Safety – include at least one and reason
• Results (only include if asked for)
• Not at 370C so no human pathogens grow
• Discuss reliability (repeat experiment) and validity (make sure the experiment tests the aim)
• Include fact a control was used

Edit:Check this out https://easyhsc.com.au/home-easyhsc...se/practical-investigation-microbial-testing/

Thank you