Respiration in plants occurs during ______

Options

A. day
B. night
C. Neither (a) nor (b)
D. day and night

Answer

**Step-by-Step Solution:**

1. **Understanding Respiration in Plants**: Respiration is a biological process where plants take in oxygen and release carbon dioxide. This process is essential for the plant's energy production.

2. **Identifying the Time of Respiration**: Respiration in plants occurs continuously, meaning it happens both during the day and at night.

3. **Daytime Respiration**: During the day, plants perform photosynthesis, which uses sunlight to convert carbon dioxide and water into glucose and oxygen. However, they also respire, taking in oxygen and releasing a small amount of carbon dioxide.

4. **Nighttime Respiration**: At night, photosynthesis does not occur because there is no sunlight. However, plants continue to respire, taking in oxygen and releasing carbon dioxide. The amount of carbon dioxide released at night is greater than during the day since photosynthesis is not taking place.

5. **Conclusion**: Since respiration occurs both during the day and at night, the correct answer to the question is "day and night both."

**Final Answer**: Respiration in plants occurs during **day and night both**.

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