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.
Vacuoles can be found in plant cells, although the plant cell only has one vacuole. A vacuole stores water, food, and enzymes, and collects unwanted waste. A vacuole is a sac â¦ used to store water for the cell. Plant cells have a large vacuole.Animal cells have small vacuoles, if they have one at all. A vacuole maintains the acidic internal pH and also the turgor and hydrostatic pressure in the cells. They also isolate the harmful substances produced by cells which can harm its health.nimal cells have small vacuoles, if they have one at all. A vacuole maintains the acidic internal pH and also the turgor and hydrostatic pressure in the cells. They also isolate the harmful substances produced by cells which can harm its health.