LINK / CITE ADD TO WORD LIST. noun. The definition of an organelle is a structure in a cell with a specific function. An example of an organelle is a centriole.oun. A differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast, that performs a specific function. New Latin organella, diminutive of Medieval Latin organum, organ of the body, from Latin, implement, tool; see organ.
Urine Test Overview. Urinalysis, also called a routine urine test, is used to check for abnormalities in the urine.Urine is liquid waste, which is made by the kidneys and stored in the bladder until it is eliminated by the body through urination. A number of diseases and conditions can result in abnormalities in the urine.
Urinalysis is the physical, chemical, and microscopic examination of urine. It involves a number of tests to detect and measure various compounds that pass through the urine. A urine sample is needed. Your health care provider will tell you what type of urine sample is needed. Two common methods of collecting urine are 24-hour urine collection and clean catch urine specimen. The sample is sent to a lab, where it is examined for the following: PHYSICAL COLOR AND APPEARANCE.