Question

4 multiple choice 0.8 points when a tsa agar was streaked growth was seen from bacteria that are not exposed to heat, and those exposed to heat at 40c, 50c, and 60c. no growth after exposure to 70c and 80c. you can conclude that the tdp is: 80c the tdp cannot be determined from this information both 70c and 80c 70c

Explanation:

The thermal death point (TDP) is the lowest temperature at which all microorganisms in a liquid culture are killed in 10 minutes. Here, growth is seen at 40°C, 50°C, and 60°C but not at 70°C and 80°C. The TDP is the lowest of the non - growth temperatures, which is 70°C.

Answer:

70°C