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.
Plants have cell walls which are located outside the plasma membrane. Animal cells lack cell walls. The cell wall gives the plant strength and allows plants cells to fill with water creating an internal pressure called turgor pressure. Structure. Cell walls are a strong collection of laminated fibers.