Glucose is found naturally occurring in fruits and other plants. But the main simple sugar found in fruit is Fructose.
It is sweeter than glucose and can give you more energy. That's why a piece of fruit in the morning will give you more energy then a cup of coffee! Fructose is what gives most fruits that sweet flavour and in combination with the acids present in certain fruits can give a pleasantly tangy flavour.
The most important example is glucose.
Fructose
They are sugars that the body can use directly, unlike complex sugars which the body has to first break down. Glucose is an example.
It isn't that simple. I asume you are referring to a Diabetic with high sugar levels. The problem with a diabetic is NOT that their sugar is high it is mor due to the fact that their body can't break down the sugar. In these cases the person will make Keatones of have Keatoacidosis .
A nitrogenous base, a simple sugar, and a phosphate group.
Glucose is considered a simple sugar. It is a primary energy source for the brain.
Fructose, also known as fruit sugar, levulose, and laevulose, is a simple mono-saccharide which the body can use for energy. It is often found in combination with glucose as the disaccharide sucrose (table sugar), a readily transportable and mobilizable sugar that is stored in the cells of many plants, such as sugar beets and sugarcane. There is more information at the related link.
glucose
A simple no sugar diet can be found on LiveStrong, Healthy Diet Paradise, Body and Soul, Gracious Pantry, Sugar Free Like Me, Diet Easy and Deliciousness.
Glucose is a simple sugar that serves as the chief source of energy in the body. Glucose is the principal sugar the body makes. The body makes glucose from proteins, fats and, in largest part, carbohydrates
galactose
You do not need any simple sugar in your diet. Your digestive system turns complex carbohydrates into simple sugar. When you eat a potato or a serving of corn, your body will turn it into simple sugar.
It could be sugar, or a toffee.
glucose
fructose
Lactose is the main sugar found in milk. This is a disaccharide of glucose and galactose.
Skull
Sugar by itself is a simple carbohydrate , but when it is in foods like potatoes that are carbs but turn into sugar in your body it is a complex carb.
The main sugar found in plant material is cellulose. Cellulose is composed of chains of linked glucose molecules.