What are the main protein types and their functions?

Proteins play a significantly important role in many biological processes. They are very versatile and have many functions in the body.

• Enzymes: Catalyze biochemical reactions.
• Transport proteins: Carry substances in the blood or lymph throughout the body.
• Structural proteins: Construct different structures, like the cytoskeleton.
• Hormones: Coordinate the activity of different body systems.
• Defensive proteins: Protect the body from foreign pathogens.
• Contractile proteins: Affect muscle contraction.
• Storage proteins: Provide nourishment in early development of the embryo and the seeding.