The cells of plants, fungi, and most chromalveolates have a cell wall, a layer outside the cell membrane, providing the cell with structural support, protection, and a filtering mechanism.
âBrittleâ describes a severe form of diabetes. Itâs characterized by an up and down of blood sugar levels. These swings in glucose can affect quality of life and even lead to hospitalization.Advances in diabetes management have made this condition rare, but brittle diabetes is still a concern among diabetics.Itâs also a sign that your blood sugar is poorly managed. The best way to prevent brittle diabetes is to follow a health plan set forth by your doctor.dvances in diabetes management have made this condition rare, but brittle diabetes is still a concern among diabetics. Itâs also a sign that your blood sugar is poorly managed. The best way to prevent brittle diabetes is to follow a health plan set forth by your doctor.
Not all ionic crystals are brittle. Alkali halide crystals (such as NaCl), which are made from singly charged ions, are not particularly brittle, although they are usually easy to cleave. Crystals made from doubly charged ions (such as MgO) are usually brittle, because they have much stronger Coulomb forces between the ions. Brittle crystals are ones in which it is difficult to create and move dislocation lines. See: Dislocation creep - Wikipedia.