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 of plant cells are larger than those found in animal cells. The central vacuole present in plant cells is one of the important cell organelles. The central vacuole, surrounded by tonoplast, offers support to cells which constitute leaves and other soft parts of plants.The solutes present in vacuoles are known to absorb water.he 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.