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Questions and Answers
Metal resistance in bacteria is usually determined by genes carried on chromosomes.
Metal resistance in bacteria is usually determined by genes carried on chromosomes.
False (B)
Siderophores are high molecular-weight chelating agents with a low affinity for ferric iron.
Siderophores are high molecular-weight chelating agents with a low affinity for ferric iron.
False (B)
Biosurfactants are produced by microorganisms under high iron conditions.
Biosurfactants are produced by microorganisms under high iron conditions.
False (B)
Biotransformation of metals can convert less toxic metals into more toxic metals.
Biotransformation of metals can convert less toxic metals into more toxic metals.
An increase in environmental pH increases metals solubility.
An increase in environmental pH increases metals solubility.
Dimorphism is not affected by environmental pH.
Dimorphism is not affected by environmental pH.
Microorganisms can produce extracellular polymeric substances (EPS) to increase metal bioavailability.
Microorganisms can produce extracellular polymeric substances (EPS) to increase metal bioavailability.
Biosurfactants are not useful for bioremediation of heavy metal contaminated soil.
Biosurfactants are not useful for bioremediation of heavy metal contaminated soil.
Nitrification is enhanced by a decrease in environmental pH.
Nitrification is enhanced by a decrease in environmental pH.
Microbial processes in the environment, such as biodegradation of organic pollution, are enhanced by a decrease in environmental pH.
Microbial processes in the environment, such as biodegradation of organic pollution, are enhanced by a decrease in environmental pH.
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