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13 Cards in this Set
- Front
- Back
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Alcohols
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disorganize lipid bilayer in membranes, denatures proteins
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Detergents
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-include quaternary ammonium compounds
-disrupts structure of lipid bilayer in membranes |
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phenols
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disrupt membranes and denature proteins
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hexacholophene
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used in soaps but may be neurotoxic
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chlorine
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-both link together sulfhydryl (-SH) groups in enzymes to form disulfides (-S-S-)
-act as oxidizing agents |
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iodine
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an oxidizer, links -SH groups together, and binds to amino acid tyrosine in proteins
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tincture of iodine
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2% solution of I2 and KI in ethanol - used to prepare skin before blood culture
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heavy metals
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bind to -SH groups in enzymes
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hydrogen peroxide
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-oxidizing agent that attacks -SH groups on enzymes
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aldehydes
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add alkyl groups to amino (-NH2) and hydroxyl (-OH) groups on proteins and nucleic acids
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formaldehyde
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denatures proteins
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glutaraldehyde
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used to sterilize hospital and lab equipment, kills cells in 10-12 minutes
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ethylene oxide
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-kills by alkylating proteins and nucleic acids
-gas used in hospitals to sterilize plastic wares and other components -kills both cells and spores |
