A large molecule built of amino acids that is essential to the structure and functioning of all living things. Most protein structures consist of combinations of only about 20 of the most commonly found amino acids.
- They digest foods and turn them into energy; they move our bodies and move molecules about within our cells.
- They allow cells to detect and react to hormones and toxins to protect out bodies from foreign invaders.
- Proteins are found in the internal skeleton that gives a cell its shape - like a wooden frame to a house.
A few types of Proteins
- Hormones- To signal changes in the body
- Enzymes- Control chemical reactions
- Structural- Build body parts; frame work of muscles, bones, skin
- Defensive- Anti bodies in immune system
- Transport- Carry molecules around the body
- Receptor- "Receive" catch hormones for the cells
- Contractile- Muscles
- You might not know it but protein is also found in skin, hair, fur, scales, beaks, feathers, horns, hooves, dry weight, and bones.
- By digesting food it turns into energy that can also be used for nutrients