Podcast
Questions and Answers
What is the primary function of chlorine in water treatment facilities?
What is the primary function of chlorine in water treatment facilities?
- To eliminate heavy metals
- To keep bacterial populations low (correct)
- To adjust water pH
- To enhance water flavor
Which of the following compounds is NOT classified as an alkylating agent?
Which of the following compounds is NOT classified as an alkylating agent?
- Hydrogen peroxide (correct)
- Glutaraldehyde
- Ethylene oxide
- Formaldehyde
What concentration of ethyl alcohol is most commonly used as an antiseptic?
What concentration of ethyl alcohol is most commonly used as an antiseptic?
- 50%
- 30%
- 70% (correct)
- 90%
Which property of soap helps in cleaning the skin surface?
Which property of soap helps in cleaning the skin surface?
What is the primary role of ethylene oxide in laboratory settings?
What is the primary role of ethylene oxide in laboratory settings?
Which antiseptic is typically applied as a tincture for wound care?
Which antiseptic is typically applied as a tincture for wound care?
What is a common characteristic of detergents compared to traditional soaps?
What is a common characteristic of detergents compared to traditional soaps?
Flashcards
What are halogens and their applications?
What are halogens and their applications?
Halogens like chlorine (used in water treatment) and iodine (used as an antiseptic) are common chemical agents used to control microbial populations.
What is the primary use of alcohol as an antiseptic?
What is the primary use of alcohol as an antiseptic?
70% ethyl alcohol is a commonly used antiseptic, applied to the skin to kill microbes.
What are alkylating agents and how do they work?
What are alkylating agents and how do they work?
Alkylating agents like formaldehyde, ethylene oxide, and glutaraldehyde are chemicals that inactivate microbes.
What is the specific application of formaldehyde as an alkylating agent?
What is the specific application of formaldehyde as an alkylating agent?
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What is the specific application of ethylene oxide?
What is the specific application of ethylene oxide?
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What is the primary use of hydrogen peroxide?
What is the primary use of hydrogen peroxide?
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What is the role of soaps and detergents in microbial control?
What is the role of soaps and detergents in microbial control?
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Study Notes
Halogens
- Chlorine is frequently used in water treatment to control bacterial populations.
- Iodine is typically used as a wound antiseptic (tincture of iodine).
Alcohol
- Alcohol is an effective antiseptic for skin.
- Types include ethyl, propyl, butyl, and pentyl alcohol.
- 70% ethyl alcohol is a common antiseptic.
Alkylating Agents
- Formaldehyde inactivates viruses in vaccines and toxoid production.
- Ethylene oxide sterilizes lab plastics.
- Other alkylating agents include beta propiolactone and glutaraldehyde.
Hydrogen Peroxide
- Hydrogen peroxide is used to rinse wounds, scrapes, and abrasions.
Soaps and Detergents
- Most soaps have a pH of 8.0, which destroys some alkali-sensitive bacteria.
- Soaps mechanically wash skin by wetting, emulsifying, and dissolving surface particles.
- Detergents are synthetic compounds, strong wetting agents, and surface tension reducers.
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