Functions of proteins
a) They are structural compounds of the body. Cell membrane is protein in nature. Hair, nails and hooves are made up of protein keratin.
b) Proteins are broken down to release energy during starvation when all carbohydrate and lipid reserves are depleted.
c) Functional proteins play vital roles in metabolic regulation. Hormones are chemical messengers while enzymes regulate the speed of metabolic reactions.
d) Proteins such as antibodies provide protection to the body against infections
e) Some protein molecules are transport molecules. Haemoglobin molecule plays a crucial role in transportation of respiratory gases.
f) Proteins play a vital role in blood clotting e. g. fibrinogen.
g) Contractile proteins such as actin and myosin bring about movement.
Faimus answered the question on December 5, 2017 at 21:02
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