This slides contains information about chemical composition of the human body.

1. CHEMICAL
COMPOSITION OF THE
HUMAN BODY

2. CHEMICAL COMPOSITION
• Human body mainly consists water and organic compounds.
• i.e. Lipids, proteins, carbohydrates and nucleic acids.
WATER :
Found in extracellular fluids of the body like blood plasma, lypmh, interstitial fluid.
It serves as a solvent without which the chemistry of life could not takes place.
Human body consist 60 percent water by weight.

3. CHEMICAL COMPOSITION OF HUMAN BODY
• LIPIDS :
Chiefly fats, phospholipids and steroids are major structural components.
Fats provide energy reserve for the body. Fats pass serve as insulation and shock
absorbers.
Phospholipids and the steroid compound cholesterols are major components of the
membrane.

4. CHEMICAL COMPOSITION OF HUMAN BODY
PROTEINS :
Major structural component of the body
Like lipids, Proteins are important constituent of the cell membrane.
Extracellular materials like hair and nails are composed of protein.

5. CARBOHYDRATES :
Carbohydrates present in human body largely as fuels, either as simple sugars
circulating through the blood stream or as glycogen.
Glycogen is a storage compound in the liver and the muscles.
NUCLEIC ACID :
Nucleic acids make up genetic materials. DNA, carries body’s hereditary master
code.
RNA’s are several types. It helps to carry out the instructions encoded in DNA.
CHEMICAL COMPOSITION OF HUMAN BODY

6. CHEMICAL COMPOSITION OF HUMAN BODY
• Along with water and organic compounds, human body constituents various
inorganic minerals. i.e. calcium, phosphorus, sodium, magnesium and iron.
• Larger part of the body bones – combination of calcium and phosphorus (calcium
phosphate crystals)
• Calcium present as irons in the blood and interstitial fluid as is sodium.
• Intracellular fluid – irons of phosphorus, potassium and magnesium.