Question

Why is it usually difficult to demonstrate respiration in green plants?

Answer 1

Both respiration and photosynthesis at the day time occurs in green plants. To demonstrate the
respiration in living entities, evolution of carbon dioxide can be taken as an indicator. In plants,
during respiration, the carbon dioxide that is liberated gets used up for photosynthesis hence there is no evolution
of carbon dioxide. Consequently, it becomes difficult to demonstrate respiration in green plants
as there in no evolution of carbon dioxide during day time.