Answers

Life Processes

All plants give out oxygen during day and carbon dioxide during night”. Do you agree with this statement? Give reason.

06/11/2024

Science

10th

Answers

The statement that all plants give out oxygen during the day and carbon dioxide at night is partially correct but not fully accurate. While plants primarily release oxygen during the day due to photosynthesis, they also respire continuously, releasing carbon dioxide both day and night. The rate of oxygen production during photosynthesis generally outweighs the rate of carbon dioxide release during respiration during the day, leading to a net release of oxygen. However, at night, with no photosynthesis, respiration becomes the dominant process, resulting in a net release of carbon dioxide.
Here’s a more detailed explanation:
Photosynthesis:
During the day, plants use sunlight to convert carbon dioxide and water into glucose (a sugar) and oxygen. This process is called photosynthesis, and it’s what produces the oxygen we breathe.
Respiration:
Plants also respire, meaning they break down glucose to release energy for their growth and other life processes. During respiration, they take in oxygen and release carbon dioxide. This process happens continuously, day and night.
Daytime:
During the day, the rate of photosynthesis is higher than the rate of respiration, leading to a net release of oxygen.
Nighttime:
At night, there’s no sunlight, so photosynthesis stops. Respiration continues, but without the balance of photosynthesis, the carbon dioxide produced is released into the environment.

04/05/2025