"When the plant cell is placed in a hypotonic solution , it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell is said to have become "turgid" i.e. swollen and hard. The pressure inside the cell rises until this internal pressure is equal to the pressure outside. "
B. photosynthesis uses light energy to convert carbon dioxide and water to glucose and oxygen
There is unusually low air pressure over the western tropical pacific.
