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Growth and Nutrition of Bacteria - Section 2 Multiple Questions and Answers.
| 16. | Which of the following is the suitable temperature range for mesophiles? | ||
| A. | 20-30°C | ||
| B. | 25-40°C | ||
| C. | >40°C | ||
| D. | None of above | ||
| 17. | Exponential phase of growth curve of bacteria is of limited duration because of | ||
| A. | rise in cell density | ||
| B. | accumulation of toxic metabolites | ||
| C. | exhaustion of nutrients | ||
| D. | All of Above | ||
| 19. | In the exponential phase, the cells and cell mass | ||
| A. | first increases then decreases | ||
| B. | decreases | ||
| C. | are constant | ||
| D. | double at a constant rate | ||
| 20. | What is the primary source of food for marine life? | ||
| A. | Phytoplankton | ||
| B. | Zooplankton | ||
| C. | Sea weed | ||
| D. | Grass | ||
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