Which biological molecule contains a large amount of the element nitrogen?
most significant sources of nitrogen in the biosphere are in N-containing bio- molecules such as proteins, amino sugars, nucleic acids, and pigments, for ex- ample cholorophylls; the importance of these molecules in lifecycles is self- evident.
What biological molecules contain nitrogen?
Nitrogen can be found in living organisms as a gas (in cells), and/or in oxidized or reduced form (8). Nitrogen in the reduced form is the major component of the three most important biological macromolecular structures: (i) proteins/polypeptides, (ii) DNA and RNA, and (iii) polymers of amino sugars.
Do lipids and carbohydrates contain nitrogen?
Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON). Nucleic acids such as DNA and RNA contain carbon, hydrogen, oxygen, nitrogen, and phosphorus (CHON P).
What elements are found in carbohydrates and lipids?
They are all organic compounds, that is, they contain the element carbon. Carbohydrates and lipids both contain carbon (C), hydrogen (H), and oxygen (0); proteins contain these three elements plus one or more from nitrogen (N), sulphur (S) and phosphorous (P).
What is the importance of lipids in a diet?
Lipids are an important part of a healthy diet. The body uses lipids as an energy store, as insulation and to make cell membranes.
Why lipids are important in our diet?
They are important in the diet as energy sources and as sources of essential fatty acids and fat-soluble vitamins, which tend to associate with fats. They also contribute satiety, flavor, and palatability to the diet.
What are healthy lipids?
Polyunsaturated fat – good sources include:
- Sunflower, sesame, and pumpkin seeds.
- Fatty fish (salmon, tuna, mackerel, herring, trout, sardines) and fish oil.
- Soybean and safflower oil.