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.
Plant cell vacuole is very large and generally single in number. Animal cell vacuoles are more in number but very small. Vacuoles are membrane bound organelles. In plant cell, vacuole contains cell sap and is an important organelle that maintains turgor pressure, so that plasma membrane of plant cell is pushed against cell wall. Water and chemicals are stored in plant vacuole. Animal cell vacuoles are either generated by endocytosis or by golgi bodies for exocytosis.