What process is occurring in the plant's cells to produce the gas in the bubbles that appear?

Plants like animals are able to perform the exchange of the gases from their body. The two gases are carbon dioxide and oxygen. Plants give off oxygen when they are doing photosynthesis, i.e, production of food in presence of the sunlight from water and carbon dioxide. Plants give off carbon dioxide in the absence of sunlight when they are performing respiration. In both the cases a gas bubble will be formed, but will have a gas depending on the lighting conditions.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.