Ganong's respirometer is used to measure

Options

A. rate of aerobic respiration
B. rate of anaerobic respiration
C. respiratory quotient
D. none of these

Answer

**Step-by-Step Solution:**

1. **Understanding Ganong's Respirometer**: Ganong's respirometer is an apparatus used to measure the rate of respiration in plants. It helps in determining how much oxygen is consumed or carbon dioxide is produced during the process of respiration.

2. **Evaluating the Options**:
- **Option 1: Rate of Aerobic Respiration**: This option is correct. Ganong's respirometer measures the rate of aerobic respiration by monitoring the exchange of gases (oxygen intake and carbon dioxide output).
- **Option 2: Rate of Anaerobic Respiration**: This option is incorrect. Ganong's respirometer is not designed to measure anaerobic respiration, which occurs in the absence of oxygen.
- **Option 3: Respiratory Quotient**: This option is also incorrect. The respiratory quotient (RQ) is a ratio that compares the volume of carbon dioxide produced to the volume of oxygen consumed, but Ganong's respirometer does not directly measure RQ.
- **Option 4: None of These**: This option is incorrect as well since the first option is valid.

3. **Conclusion**: Based on the evaluation of the options, the correct answer is that Ganong's respirometer is used to measure the rate of aerobic respiration.

**Final Answer**: Ganong's respirometer is used to measure the rate of aerobic respiration.

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