Question

Enumerate the functions of proteins.

Hint:

Proteins serve multiple vital roles, including structural support, enzymatic activity, transport, immune defense, and hormonal regulation.

Answer 1

Step 1: Structural support.
Proteins provide structure and support to cells and tissues. For example, collagen in connective tissues provides strength and elasticity.
Step 2: Enzymatic activity.
Proteins act as enzymes, which speed up chemical reactions. Enzymes are crucial for digestion, energy production, and many other cellular processes.
Step 3: Transport.
Some proteins, like hemoglobin, are responsible for transporting substances (such as oxygen) within the body.
Step 4: Immune defense.
Proteins play a key role in immune defense, such as antibodies that help fight off infections.
Step 5: Hormonal regulation.
Proteins also function as hormones, which regulate various physiological processes, like insulin regulating blood sugar.