Classify each of the following proteins according to its function:
c. keratin, a protein found in hair

Verified step by step guidance

1. Understand the question: The problem asks us to classify the protein 'keratin' based on its function. Proteins can have various functions such as structural, enzymatic, transport, hormonal, or defensive roles.
2. Recall the function of keratin: Keratin is a fibrous protein that is a key structural component of hair, nails, and the outer layer of skin. It provides strength and protection to these tissues.
3. Classify keratin: Since keratin provides structural support and protection, it is classified as a structural protein.
4. Relate the classification to its role: Structural proteins like keratin are essential for maintaining the shape and integrity of cells and tissues, especially in areas exposed to mechanical stress.
5. Conclude: Based on its role in providing structure and protection, keratin is classified as a structural protein.

Key Concepts

Protein Function Classification

Proteins can be classified based on their functions, which include structural support, catalysis, transport, and regulation. Understanding the specific role a protein plays in biological systems is essential for categorizing it correctly. For instance, structural proteins provide support and shape to cells and tissues.

Keratin

Keratin is a fibrous structural protein that is a key component of hair, nails, and the outer layer of skin. It provides strength and resilience, making it crucial for protecting cells and tissues from damage. Keratin's unique structure allows it to form tough, protective barriers in various organisms.

Structural Proteins

Structural proteins are a category of proteins that provide support and shape to cells and tissues. They are essential for maintaining the integrity of biological structures, such as hair, skin, and connective tissues. Keratin, as a structural protein, exemplifies this function by forming the protective outer layer of hair and other tissues.