Muscles contain certain proteins called contractile proteins which enable it to contract and relax to bring about movements.
Contractile proteins is the term that identifies the proteins that allow muscles to shorten or lengthen.
Muscles
Houses do not have proteins and do not have muscles.
Contractile proteins is the term that identifies the proteins that allow muscles to shorten or lengthen.
Proteins
Proteins
Muscles
lipids are fats so to fat ducts and proteins in muscles
Actin and myosin cause muscles to contract.
Muscles form by being torn (soreness) and then they are rebuilt with proteins and are larger.
A cell uses Proteins for repairing and building up muscles injuries.