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Lab 7

Lab 7

Q Bacterial Growth: 1. Label the phases of growth on the following curve:

Q 2. What happens to bacteria in the phases labeled as A, B, C and D in the above figure?

Q 3. If we add more nutrients and space at the end of the exponential phase for a growing bacterial culture, what will happen?

Q Oxygen Requirement of bacteria: 4. Why can only some organisms tolerate oxygen?

Q 5. Describe the kind of bacteria shown in the figure above in terms of oxygen (concentration) requirement and special enzymes.

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A- Lag phase, B- Log phase, C- Stationary phase, D- Decline or death phase.