Which of the following is a function of collagen?

Collagen is a vital structural protein found throughout the body, and its primary function is to provide structure and support to various tissues. It is a critical component of connective tissues, such as skin, cartilage, tendons, and ligaments. By forming a fibrous network, collagen helps to maintain the strength and integrity of these tissues, ensuring that they can withstand tension and stress.

This protein plays a crucial role in maintaining the elasticity and firmness of the skin, supporting joints, and providing tensile strength to ligaments and tendons. The presence of collagen contributes to the overall architecture of organs and tissues, enabling them to perform their functions effectively.

In contrast, options involving transmitting signals, producing energy, or storing fat pertain more to different biological processes or types of tissues. For example, transmitting signals is typically associated with nervous tissue and neurotransmitters, while energy production is primarily related to cellular metabolism and occurs in organelles like mitochondria. Fat storage is primarily the function of adipose tissue. Therefore, the role of collagen is distinctly focused on providing structural support within the body.