Question
d) Suggest when most oxygen would be released into the air. e) Suggest when most carbon dioxide would be released into the air during the 24 hours. Suppo your answer with a reason.
Ask by Wagner Macdonald. in South Africa
Jan 23,2025
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Answer
**d) Most oxygen is released into the air during the daytime, especially in the morning and early afternoon, because plants perform photosynthesis when sunlight is available, producing oxygen as a byproduct.**
**e) Most carbon dioxide is released into the air during the night. This happens because, without sunlight, plants switch to respiration, consuming oxygen and releasing carbon dioxide, leading to an increase in carbon dioxide levels in the atmosphere.**
Solution
**d) Suggest when most oxygen would be released into the air.**
Most oxygen is released into the air **during the daytime**, particularly in the **morning and early afternoon**. This is because plants perform photosynthesis when sunlight is available, a process that converts carbon dioxide and water into glucose and oxygen. The presence of light activates the chlorophyll in plant cells, facilitating the release of oxygen as a byproduct.
**e) Suggest when most carbon dioxide would be released into the air during the 24 hours. Support your answer with a reason.**
Most carbon dioxide is released into the air **during the night**. This occurs because, in the absence of sunlight, plants cease photosynthesis and instead rely solely on respiration to generate energy. During respiration, plants consume oxygen and release carbon dioxide. Without the balancing effect of photosynthesis to absorb carbon dioxide, the net release of carbon dioxide into the atmosphere increases during nighttime hours.
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Most oxygen would be released into the air during daylight hours, especially around noon when sunlight is at its peak. This is the time when photosynthesis occurs most vigorously in plants, as they absorb sunlight and carbon dioxide to produce oxygen, creating a vibrant atmosphere filled with fresh air! Conversely, carbon dioxide is typically released into the air during the night when photosynthesis pauses and plants switch to respiration. This process happens continuously, but it's more pronounced after sundown when the absence of sunlight means plants can't convert carbon dioxide back into oxygen. So, expect a carbon dioxide spike after dusk!
