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Questions and Answers
What is the optimal pH for the growth of most foodborne bacteria?
What is the optimal pH for the growth of most foodborne bacteria?
- About 7 (correct)
- About 3.5
- About 4.5
- About 10
What is the pH of a substance with a hydrogen ion concentration of 10^(-7) M?
What is the pH of a substance with a hydrogen ion concentration of 10^(-7) M?
- 10
- 13
- 1
- 7 (correct)
Which of the following microorganisms is most likely to grow at a pH of 4.5?
Which of the following microorganisms is most likely to grow at a pH of 4.5?
- Bacteria
- Yeast (correct)
- Moulds
- All of the above
What is the minimum pH at which Clostridium can grow?
What is the minimum pH at which Clostridium can grow?
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What happens to the growth rate of microorganisms when the pH is not equal to the optimal pH?
What happens to the growth rate of microorganisms when the pH is not equal to the optimal pH?
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At what pH does the growth rate of microorganisms decline?
At what pH does the growth rate of microorganisms decline?
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What is the term for a microorganism that grows optimally at a pH of 7?
What is the term for a microorganism that grows optimally at a pH of 7?
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What is the optimum pH for the growth of yeast?
What is the optimum pH for the growth of yeast?
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What is the relation between pH and hydrogen ion concentration?
What is the relation between pH and hydrogen ion concentration?
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What is the optimum pH for the growth of moulds?
What is the optimum pH for the growth of moulds?
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