Guide. A bone density test measures the density of minerals (such as calcium) in your bones using a special X-ray. This information is used to estimate the strength of your bones.
Animal cells do have vacuoles, but they are smaller, larger in number (plant cells usually have just one or a few large vacuoles) AND serve a somewhat different purpose than those of plants.
The role played by vacuoles in animal cells is not as important as in plant cells. The functions that vacuoles perform in different types of cells are listed below. Maintaining the turgor pressure and pH in cells are the important vacuole functions.acuole is an important organelle present in the cells of plants, animals, protists, fungi and bacteria. Apart from water, vacuoles also contains different kinds of organic/inorganic molecules, solid materials and enzymes. Vacuoles are kind of large-sized vesicles.