If a plant is releasing carbon dioxide and taking in oxygen during the day,does it mean that there is no photosynthesis occurring? Justify your answer.

(N/A) The release of $CO_2$ and the intake of $O_2$ indicates that either photosynthesis is not occurring or its rate is significantly lower than the rate of cellular respiration. Under normal daylight conditions,the rate of photosynthesis is much higher than the rate of respiration. Consequently,the $CO_2$ produced during respiration is consumed in the process of photosynthesis,meaning no $CO_2$ is released into the atmosphere.