AP BIOLOGY

Detailed explanation-1: -Atmospheric gas exchange is, therefore, higher at night when the plant is respiring, but photosynthesis does not take place due to the absence of sunlight. Oxygen, rather than being supplied by photosynthesis, is taken up from the atmosphere at night.

Detailed explanation-2: -The plant will die within a few hours as it cannot produce food without sunlight.

Detailed explanation-3: -Plants release oxygen during the day in the presence of natural light through the process of photosynthesis. While at night, the plants uptake oxygen and release carbon dioxide, which is called respiration.

Detailed explanation-4: -Adding plants to interior spaces can increase oxygen levels.At night, photosynthesis ceases, and plants typically respire like humans, absorbing oxygen and releasing carbon dioxide.

Detailed explanation-5: -At night, photosynthesis does not occur hence they take in oxygen and give out carbon dioxide. Therefore, it is said that during the daytime, plants take in carbon dioxide and give out oxygen, and during the night it is vice-versa.