Final answer:
Proteins have functions such as catalysis, defense, and transport in living organisms.
Explanation:
Functions of proteins:
- Catalysis: Proteins act as enzymes that catalyze biochemical reactions in the body, such as digestion.
- Defense: Proteins like antibodies protect the body by identifying and destroying harmful foreign substances.
- Transport: Proteins like hemoglobin transport molecules, such as oxygen, throughout the body.
Learn more about Protein functions in living organisms here:
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