Respiration uses oxygen to release energy from stored sugar and produces carbon dioxide as a byproduct. During daytime, photosynthesis is going on faster than respiration, so, normally, plants will produce oxygen during the day (just what your dad could do with).

During daytime, photosynthesis produces oxygen and glucose faster than respiration consumes it. Photosynthesis also uses carbon dioxide faster than respiration produces it. Oxygen surplus is released into the air and unused glucose stored in the plant for later use.

Sunlight allows plants to perform photosynthesis, a process which is required for plant growth and health. Photosynthesis allows plants to synthesize glucose from carbon dioxide and water and release oxygen. The blue and red portions of the sun’s wavelengths supply plants with their color.

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Plants give out carbon dioxide not only at night but during the day too. It happens because of the process of respiration in which plants take in oxygen and give out carbon dioxide. As soon as the sun rises another process called photosynthesis starts, in which carbon dioxide is taken in and oxygen is given out.

All plants give out oxygen during day and carbon dioxide during night”.

Peepal tree

Plants respire all the time, whether it is dark or light. They photosynthesise only when they are in the light.

The general answer is around 90 degrees F, with some exceptions to the rule. This means that when temps rise above 90 and remain there for a lengthy spell: Leaves wilt. Water evaporates into the atmosphere more quickly in high heat, draining a plant’s reserves.