Bioelements презентация

Bioelements You will: describe the role of micro- and macroelements in the life of organisms

Element - is a substance that cannot be divided into other substances by chemical reactions

Elements that we need in high amounts are called macroelements. Elements that we need in low amounts are called microelements or trace elements.

Macroelements Oxygen (O) is a compound of water and most organic molecules. Carbon (C) is a backbone of organic molecules. Hydrogen (H) is a compound of water and organic molecules. Nitrogen (N) is a compound of proteins and nucleic acids. Potassium (K) is important in nerve function. Phosphorus (P) is a component of bones and teeth.

Microelements Iron (Fe) is part of important proteins such as hemoglobin involved in oxygen transport Iodine (I) is necessary for the production of thyroid hormone. Fluoride (F) is part of the tooth enamel and bone. Cobalt (Co) is a part of a vitamin.