DENDROLOGY

Detailed explanation-1: -Respiration occurs all through the day, but the photosynthesis process occurs in the daytime, in the presence of sunlight only. Consequently, respiration becomes evident at night time in plants.

Detailed explanation-2: -In the process, plants take in carbon dioxide and release oxygen. No light, no photosynthesis. However, like us, plants respire nonstop, day and night, continually taking in oxygen and releasing carbon dioxide as they “burn” stored carbohydrates to fuel growth and the many metabolic functions needed to sustain life.

Detailed explanation-3: -Respiration in plants happens throughout the day and night thereby carbon dioxide is produced. However, during the daytime, the amount of carbon dioxide released is negligible compared to the amount of oxygen produced as a result of photosynthesis. Hence, one should not sleep under a tree at night.