The weight of the insulated, sealed container during cellular respiration will B. stays the same.
Here's the reasoning:
During cellular respiration, glucose and oxygen are transformed into carbon dioxide, water, and energy. While this process involves a chemical reaction and the transformation of substances, the total mass of all substances within the sealed container remains constant according to the law of conservation of mass. Although gases (like carbon dioxide) are being produced, they are still contained within the container, so there is no loss of mass from the system.
Therefore, the overall weight of the container remains unchanged throughout the reaction.