US National Weather Service Philadelphia September Weather data records that on September 28, 1984, the high temperature did not exceed 52 degrees Fahrenheit, the lowest high measured in Philadelphia in the past 69 years.
Vacuoles are generally used to store cell products or protect the rest of the cell from invading microorganisms. The large central vacuole of plant cells is a special case. It is used to store water and cellular wastes and helps maintain the necessary internal pressure of plants called turgor pressure. Structure.
1 They are membrane bound organelles that have no specific shape and contain water with a number of different compounds within it. 2  Their function varies greatly depending on the type of cell they are part of. 3  In plant cells they are important in maintaining Turgor Pressure.