I've seen the same planet colored differently in different photos. Here are the true colors of the planets, with links to some relevant images from NASA spacecraft. (Note that spacecraft photos appearing in the media often have false coloration.) Mercury: gray (or slightly brownish). Mercury has practically no atmosphere, so we just see the rocky surface.
The composition of the human body is expressed in terms of chemicals: 1  Water. 2  Proteins â including those of hair, connective tissue, etc. 3  Fats (or lipids) 4  Hydroxylapatite in bones. 5  Carbohydrates such as glycogen and glucose. 6  DNA. 7  Dissolved inorganic ions such as sodium, potassium, chloride, bicarbonate, phosphate.
Protein and the human body. The average human body is made up of 60% water, 17% fat and only 5% carbohydrate. Protein comprises a similar proportion of the body as fat at 17% and forms essential components of all body tissues structure such as cell membranes and genetic material and plays a major role in metabolic systems in the form of blood hormones, antibodies and enzymes.