Posted: April 27th, 2017

How are microorganisms destroyed by moist heat? By dry heat?

Support your responses with examples.

Cite any sources in APA format.


Week 5 – Review Sheet


Exercise 1: Moist and dry heat


1.  How are microorganisms destroyed by moist heat? By dry heat?


2.  Are some microorganisms more resistant to heat than others? Why?


3.  Is moist heat more effective than dry heat? Why?


4.  Why does dry heat require higher temperatures for longer time periods to sterilize than does moist heat?


5.  What is the relationship of time to temperature in heat sterilization? Explain.



Exercise 2: The autoclave


1. Define the principles of sterilization with an autoclave and with a dry heat oven.


2. What pressure, temperature, and time are used in routine autoclaving?


3. What factors determine the time period necessary for steam-pressure sterilization? Dry-heat oven sterilization?


4. Why is it necessary to use bacteriologic controls to monitor heat- sterilization techniques?


5. When running an endospore control of autoclaving technique, why is one endospore preparation incubated without heating?

Expert paper writers are just a few clicks away

Place an order in 3 easy steps. Takes less than 5 mins.

Calculate the price of your order

You will get a personal manager and a discount.
We'll send you the first draft for approval by at
Total price:
Live Chat+1-631-333-0101EmailWhatsApp