Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

11. Controlling Microbial Growth

Chemical Gases: Ethylene Oxide, Ozone, & Formaldehyde

Microbiology

11. Controlling Microbial Growth

Chemical Gases: Ethylene Oxide, Ozone, & Formaldehyde

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Multiple Choice

Ethylene oxide is gas that:

Requires special conditions when being used.

Is potentially carcinogenic.

Is used as a 37% aqueous solution.

Is effective against all microorganisms except endospores and viruses.

A and B.

C and D.

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Verified step by step guidance

Understand the properties of ethylene oxide: Ethylene oxide is a gas that is used for sterilization purposes. It is known for its ability to penetrate materials and kill microorganisms, but it requires specific conditions to be effective.

Recognize the health risks associated with ethylene oxide: It is potentially carcinogenic, meaning it can cause cancer in living tissue. This is an important consideration when handling or using ethylene oxide.

Identify the form in which ethylene oxide is used: Ethylene oxide is often used in a 37% aqueous solution, which means it is dissolved in water at this concentration for certain applications.

Evaluate the effectiveness of ethylene oxide against microorganisms: Ethylene oxide is effective against a wide range of microorganisms, but it is not effective against endospores and viruses. This limitation is crucial when considering its use for sterilization.

Determine the correct answer based on the given options: The problem states that the correct answer is A and B, C and D. This suggests that the statements regarding special conditions and carcinogenic potential (A and B) are correct, as well as the statements about its aqueous solution form and effectiveness against microorganisms (C and D).