H1: Biological Functions of Proteins
Proteins are a class of macromolecules that serve various functions in the body. These range from digestion, transportation and structural functions to defense, storage and movement. We shall explore the important role of proteins in this article.
Function of Proteins (Classified by Types)
- Digestive Enzymes
Certain proteins act as digestive enzymes. In other words, they catabolize nutrients into constituent monomeric units. Examples of digestive enzymes include pepsin and amylase.
- Structural Proteins
Proteins are integral as they form components of certain structures. Examples include keratin and tubulin.
- Hormonal Functions
Hormones are paramount for regulating body functions. Insulin is one such example.
- Transportation
Proteins play a major role in transporting substances throughout the body. Examples of such proteins include haemoglobin
- Defence and Protection
Another major function of proteins is that they form a part of the immune system and protect the body from pathogens. Example of such a protein is immunoglobulin.
- Storage Functions
Proteins also provide nourishment for development of embryo – such as albumin, or the egg white.
Please note – enzymes and hormones are essentially types of proteins. Enzymes essentially function as catalysts for biochemical reactions. On the other hand, hormones serve as molecules for signalling and communication between cells.
Read More:
- What are Hormones? Types, Functions and Hormonal Diseases
- Enzymes – Structure, Classification, and Function
Frequently Asked Questions on Biological Functions of Proteins
What are biological functions of proteins
Proteins are important macromolecules that serve many functions in the body. Some of the most important roles they play are:
- Digestion
- Provide structure
- Hormonal Functions
- Transportation
- Defence
- Storage
Explore more about biological functions of proteins or discover other fascinating topics by registering at BYJU’S Biology.
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