Glucose is a sugar with the molecular formula C 6 H 12 O 6. It is the most abundant monosaccharide, [4] a subcategory of carbohydrates. It is made from water and carbon dioxide during photosynthesis by plants and most algae.
A blood glucose test mainly screens for diabetes by measuring the level of glucose (sugar) in your blood. It can be a blood draw or a finger prick.
glucose, one of a group of carbohydrates known as simple sugars (monosaccharides). Glucose (from Greek glykys; “sweet”) has the molecular formula C 6 H 12 O 6. It is found in fruits and honey and is the major free sugar circulating in the blood of higher animals.