Cell inclusions are a large and diverse group of chemical substances produced by cells. Although some have recognizable shapes, they are not bounded by a membrane. These products are principally organic molecules and may appear or disappear at various times in the life of a cell.
Examples include melanin, glycogen and triglycerides (neutral fats).
Melanin is a pigment stored in certain cells of the skin, hair and eyes. It protects the body by screening out harmful ultraviolet rays from the sun.
Glycogen is a polyacrylamide that is stored in liver, skeletal muscle and the inner lining of the uterus and vagina. When the body requires quick energy, liver cells can break down the glycogen into glucose and release it into the blood.
Triglycerides, which are stored in adipo-cytes (fat cells), may be broken down to synthesize ATP.
0 comments:
Post a Comment