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Questions and Answers
Which of the following is NOT a unifying theme in the field of biology?
Which of the following is NOT a unifying theme in the field of biology?
What is the fundamental process that allows organisms to move, grow, and reproduce?
What is the fundamental process that allows organisms to move, grow, and reproduce?
Which type of organisms emerged more than 3.7 billion years ago on Earth?
Which type of organisms emerged more than 3.7 billion years ago on Earth?
How do biologists study life at multiple levels of organization?
How do biologists study life at multiple levels of organization?
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What is the basis for the unity and diversity of life according to the text?
What is the basis for the unity and diversity of life according to the text?
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Study Notes
Sterilization Principles and Methods
- Sterilization destroys all microorganisms on the surface of an article or in a fluid to prevent disease transmission associated with the use of that item.
Types of Sterilization Processes
- There are five sterilization processes: Steam (moist) Sterilization, Dry Heat Sterilization, Filtration Sterilization, Gas Sterilization, and Ionization Sterilization.
Sterilization Process Selection
- The selection of the appropriate sterilization method depends on certain basic information:
- The nature and amount of product
- Whether the product and container-closure system will have a predominately moist or dry environment during sterilization
Microorganism Categorization
- Microorganisms can be categorized into three general categories for sterilization purposes:
- Easy to kill with either dry or moist heat
- Susceptible to moist heat, but resistant to dry heat (e.g. Bacillus subtilis)
- Resistant to moist heat, but susceptible to dry heat (e.g. Colstridium sporogenes)
Sterilization Verification
- Sterilization tests are performed to verify that an adequate sterilization process has been carried out.
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Description
Test your knowledge of sterilization principles and methods with this quiz. Learn about steam, dry heat, filtration, gas, and ionization sterilization processes commonly used for healthcare products and devices.
