Question

The most abundant protein in the human body is.
(a) Collagen
(b) Myosin
(c) Actin
(d) Albumin

Answer 1

Hint: The most abundant protein in the human body refers to a family of proteins that are the primary structural component of connective tissues, such as skin and cartilage. It accounts for about one-third of all the protein in the human body, more than any other type of protein in the body by mass.

Complete answer:
The most abundant protein, which is present in the human body is collagen. Collagen accounts for 30 percent of the total protein content in the human body. It is a key constituent of all the connective tissues in our body. Collagen is present in our joints, bones, skin, hair, etc. Collagen assists the skin to move, stretch, and recoil into shape. Collagen is present throughout the body and it keeps the cells together. The body without collagen would fall apart into pieces. Collagen is an important structural protein of the various connective tissues in animals. They make abundant protein in mammals, forming up around 25 to 35 percent of the whole body protein content. Collagen is mostly found in fibrous tissues such as tendons, ligaments, and skin in the form of elongated fibrils. It is also found in corneas, cartilage, bones, blood vessels, the gut, and the dentin in teeth. It serves as a major component of the endomysium in muscle tissues.

Additional Information:
- Proteins are the much larger structural and functional organic component of the living substance.
-They largely determine the functional properties of the living matter, serve as the chief regulators of life activities, and form the organic basis of life.
- Their roles as the main structural and functional molecules of cells, and also as the chief regulators of life processes, are remarkable.

So, the correct answer is 'Collagen'.

Note:
-Collagen have maximum specificity in action, which is characteristic of life itself.
-Proteins are complex, nitrogen-containing macromolecules. Since they are macromolecules, they are long-chain molecules.
-Chemically they are polyelectrolytes, with colloidal, osmotic, and buffering properties.