Which function of proteins is NOT correctly matched with the example?

A) Transport - hemoglobin
B) Structure - collagen and keratin
C) Regulation - enzymes and hormones
D) Protection - packing around organs and glands
E) Contraction - actin and myosin in muscles

Hemoglobin

A component of red blood cells, hemoglobin serves the crucial function of delivering oxygen from the lungs to tissues across the body and returning carbon dioxide from the tissues to the lungs.

Collagen

The main structural protein found in skin and other connective tissues, providing strength and elasticity.

Enzymes

Biological catalysts that speed up chemical reactions in the body without being consumed by the reactions.