Glucose. A six carbon sugar.
glukose
glucose
brain cells, nerve cells, red blood cells
A central nervous system depressant (or relaxer), a social lubricant, and a source of energy, among many other things.
The preferred energy source for the brain is always glucose. It is also the preferred energy source for a fetus, as well as the central nervous system.
Carbohydrates provide the body with energy for working muscles, provide fuel for the central nervous system, enable fat metabolism, and prevent protein from being used as energy. Carbohydrates are the preferred source of energy or fuel for muscle contraction and biologic work.
fat
The sun is the central component of our solar system that functions as its gravitational center and primary radiant energy source.
green energy source
In the body the role of carbohydrates is very limited compared to that of fat or protein. Muscle/liver glycogen stores are used to stabilise blood sugar, and to provide a fast source of energy for high intensity bursts of exercise. Serum glucose also provides a source of energy for the brain and central nervous system in the absence of ketones, as they are unable to metabolise fatty acids.
The sun is the major external source of energy.
Solar energy :)
The Sun.