The DNA of most bacteria is contained in a single circular molecule, called the bacterial chromosome. The chromosome, along with several proteins and RNA molecules, forms an irregularly shaped structure called the nucleoid. This sits in the cytoplasm of the bacterial cell.
Urine tests for diabetes facts. 1  Urine tests may be done in people with diabetes to evaluate severe hyperglycemia (severe high blood sugar) by looking for ketones in the urine.  Ketones are a metabolic product produced when fat is metabolized. Ketones increase when there is insufficient insulin to use glucose for energy.
Urine doesn't usually contain glucose, but if you have diabetes, some glucose can overflow through the kidneys and into the urine. Your urine may also be tested for ketones (chemicals) that indicate type 1 diabetes. If your urine contains glucose, a blood test can be used to confirm the diagnosis of diabetes.f your blood glucose levels aren't high enough for your GP to diagnose diabetes, you may need to have an oral glucose tolerance test (OGTT), which is also sometimes referred to as a glucose tolerance test (GTT). After drinking a glucose drink, samples of your blood will be taken every half an hour, for two hours.