Question

the thermal death point (tdp) refers to:
the time needed to kill all organisms at a specific temperature
the temperature needed to stop growth
the lowest temperature required to kill all organisms in 10 minutes
the decimal reduction time
question 25 (1 point)
incineration and autoclaving both:
preserve materials
rely on dry heat
destroy all microbes
use radiation

Explanation:

• For the first question:
• Thermal death point (TDP) is defined as the lowest temperature required to kill all organisms in a 10 - minute exposure.
• The time needed to kill all organisms at a specific temperature is thermal death time. The temperature needed to stop growth is related to growth inhibition, not death. Decimal reduction time is the time to reduce the microbial population by 90%.
• For the second question:
• Incineration burns materials (not preserving them) and uses dry heat. Autoclaving uses moist heat (steam under pressure). Both incineration (by burning) and autoclaving (by denaturing macromolecules, etc.) destroy all microbes (including endospores in the case of proper autoclaving). Neither uses radiation.

Answer:

• First question: The lowest temperature required to kill all organisms in 10 minutes
• Second question: Destroy all microbes