nerve impulse
muscle contraction
main part of nails and hair
chemical reactions take place in it
waterproofing
main structural component of cells membranes
immediate energy
part of cellulose, chitin, bacteria cell walls...
diferenciales our own cells from foreign cells
thermal insulator
hormones such as insulin or growth hormone
transport
plays a role in fertilization
part of bones and teeth
regulates temperature
part of antibodies
contractibility
control information displayed
mechanical protector of internal organs
enzymes
proteins are made following their rules
part of joints and skin
homeostasis
sexual and stress hormones
store energy
genetic information