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Three examples that i believe to be (dont take my word for it) that are examples of proteins in living organisms are

Insulin,, pepsin,, and they provide cell structure

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12y ago
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6mo ago

Proteins serve as enzymes to catalyze biochemical reactions, provide structural support by forming tissues like muscles and skin, and act as antibodies to defend against foreign invaders like bacteria and viruses.

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12y ago

These are i) structural, ii) functional, and iii) regulatory.

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Q: What are the three main functions of proteins in living things?
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