Function of proteins

Function of proteins

Introduction:

• Proteins are vital and complex molecules present in our bodies, where they play crucial roles in various cellular processes.
• Each protein has a specific function and is involved in a wide range of activities within cells.

Main Functions of Proteins

Structural Proteins

• Nature: Fibrous
• Examples: Keratin, Collagen, Elastin
• Function: Provides structural support and protection in the body.
• Examples: Keratin protects hair, and collagen and elastin support tendons and ligaments.

Contractile Proteins

• Nature: Fibrous
• Examples: Actin, Myosin
• Function: Enables muscles to contract and facilitate movement.
• Examples: Actin and myosin are responsible for muscle movement.

Protein Hormones

• Nature: Globular
• Examples: Insulin
• Function: Regulates various metabolic processes, including glucose regulation.
• Examples: Insulin regulates glucose levels in the body.

Enzymes

• Nature: Globular
• Examples: Amylase
• Function: Facilitates chemical reactions by acting as biological catalysts.
• Examples: Amylase aids in the digestion of carbohydrates.

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Function of proteins

Transport Proteins

• Nature: Globular
• Examples: Haemoglobin
• Function: Facilitates the transport of molecules, such as oxygen, in the bloodstream.
• Examples: Haemoglobin carries oxygen in the blood.

Antibodies

• Nature: Globular
• Examples: Produced naturally in the body or after vaccination
• Function: Plays a crucial role in the immune system by identifying and fighting against foreign invaders, such as pathogens.
• Examples: Antibodies help the body fight diseases.

Conclusion

• Proteins are essential molecules in the body, with diverse functions that include providing structural support, enabling movement, regulating metabolic processes, facilitating chemical reactions, transporting molecules, and defending against diseases.