To yield a compound that is fully active, a molecule of vitamin D must be chemically altered by kidney and liver tissues. In the liver, it's converted to calcidiol, and in the kidneys, to calcitriol.
Retinal
precursors
Covalent Bond. Chemically Active. The only elements that are inert are group 18, or 8A.
No, acetic acid is a weak acid commonly found in vinegar, while vitamin C is an essential nutrient known as ascorbic acid. They are chemically different compounds with different functions in the body.
It is a compound, so it is a pure substance.
i am pretty sure that when an atom is chemically active its outer valence shell is not full meaning it is able to form different types of bonds with different elements.
Bromine is chemically active. It is a halogen and readily forms compounds with other elements, making it reactive in chemical reactions.
Supplements may contain either the active or precursor forms of vitamin A. The active form may be more desirable for those who may have some difficulty in converting the carotenoids into the active vitamin.
Fluorine
Vitamin D comes from sunshine exposure and works with the mineral calcium. "Sunshine vitamin" is the nickname for vitamin D because the human body produces vitamin D through exposure to the UV rays of the Sun.
Oil from the pressed inner seed contains olein, glyceride of linoleic acid, and a transparent, crystalline chemical compound, amygdalin, or laetrile. This compound is also known as vitamin B17.
Uranium is considered a chemically active element because it can form compounds with other elements, such as oxygen or fluorine. These compounds have various industrial and scientific applications, but uranium itself is primarily known for its use in nuclear reactions and weapons.