proteins

• blood proteins


  help in the transport of lipids, hormones, vitamins, and minerals for the activity and functioning of the immune system.
• catalytic proteins


  speed up chemical reactions in the body
• contractile proteins


  are involved in the contraction and relaxation of muscle tissues
• digestive proteins


  split other proteins into simpler molecules
• hormonal proteins


  stimulate biological activitues in cells
• immune defense proteins 


  protect the body from diseases
• respressor proteins


  regulate the expression of a gene or operon
• respiratory proteins


  improve the ability of the blood to transport and deliver oxygen and support intracellular storage
• structural proteins


  help in the formation of different organs and connective tissues in the body
• transport proteins


  help move materials within an organism