Zusammenfassung der Ressource
Protein
- Composition
- Carbon, hydrogen,
oxygen & nitrogen
- Arranged in small units called
amino acids which are linked
together to form chains
- Digested into sigle
amino acids which are
easily absorbed
- Used to make new
cells or to repair
damaged cells
- Some of the amino acids in protein can only be taken into the
body in the foods that we eat, these are essential amino acids
- (10 essential amino acids for children)
- High Biological Value (HBV) -
contain more essential amino
acids. - Mostly animal sources -
meat, fish eggs, dairy, soya protein
- Low Biological Value (LBV) - contain
fewer essential amino acids and are
cheaper to produce - mostly plant
foods - pulses (beans, peas), Cereals
(wheat, oats), Nuts, Bread, Pasta
- Functions - growth of body cells e.g. blood, skin, bone. Repair of damaged cells.
Heat and energy. Production of body chemicals such as hormones and enzymes.