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Questions and Answers
What is a major source of phosphorus for bacteria?
What is a major source of phosphorus for bacteria?
- Sulphur salts
- Phosphate salts
- Organic sulphur
- DNA and RNA nucleotides (correct)
What happens to Fe+2 in the presence of O2?
What happens to Fe+2 in the presence of O2?
- It remains unchanged
- It becomes insoluble
- It is reduced to Fe3+
- It is rapidly oxidized to Fe3+ (correct)
What is the purpose of siderophores in bacteria?
What is the purpose of siderophores in bacteria?
- To oxidize Fe+2 to Fe3+
- To bind Fe3+ in the environment and facilitate uptake by the cell (correct)
- To secrete organic compounds for energy production
- To reduce Fe3+ to Fe2+ inside the cell
What are the two types of culture media mentioned in the text?
What are the two types of culture media mentioned in the text?
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What are growth factors in the context of bacterial growth?
What are growth factors in the context of bacterial growth?
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What is the purpose of culture media in microbiology?
What is the purpose of culture media in microbiology?
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What is the difference between defined and complex media?
What is the difference between defined and complex media?
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What happens to Fe3+ in the presence of O2?
What happens to Fe3+ in the presence of O2?
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What are growth factors in the context of bacterial growth?
What are growth factors in the context of bacterial growth?
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What is the major source of phosphorus for bacteria?
What is the major source of phosphorus for bacteria?
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