What are the 4 types of proteins and what are there functions?

Table 1. Protein Types and Functions

TypeExamplesFunctions

StructuralActin, tubulin, keratinConstruct different structures, like the cytoskeleton

HormonesInsulin, thyroxineCoordinate the activity of different body systems

DefenseImmunoglobulinsProtect the body from foreign pathogens

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .