~ Building Tissues and Muscles.
Protein is necessary in building and repairing body tissues.
~ Hormone Production.
Protein hormones bind to receptors on the cell membrane instead of entering the cell directly.
~ Enzymes
Enzymes are proteins that bind to molecules to speed up chemical reactions.
~ Immune Function
Antibodies are specialized protein configurations that provide a specific immune defense against invaders.
The answers is semi permeable hope this helps
Just find the similaritys and the differences
