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.
Vacuoles in animal cells are usually small, and vacuoles in plants are using large. The pressure created by the large vacuole helps to maintain the rigid structure of the plant cell and of the plant. (A, P) Centrosomeâare small organelles found just outside the nucleus in animal cells.