The protein deposited in the dead superficial cells that make the skin...
A is the correct option.The protein deposited in the dead superficial cells that make the skin epithelium impervious to water is Keratin which makes this epithelium impervious to water.
The protein deposited in the dead superficial cells that make the skin...
Explanation:
The protein deposited in the dead superficial cells that make the skin epithelium impervious to water is Keratin.
Keratin is a fibrous protein that is the main structural component of hair, nails, hooves, horns, and feathers. It is also found in the outermost layer of the skin, known as the epidermis.
The epidermis is composed of several layers, with the outermost layer consisting of dead cells that are constantly being shed and replaced. These cells, known as keratinocytes, contain large amounts of keratin.
Keratin is responsible for the physical properties of the epidermis, including its strength, elasticity, and waterproofing ability. It forms a protective barrier that prevents water and other substances from penetrating the skin.
Keratin is produced in specialized cells called keratinocytes, which migrate to the surface of the skin as they mature. As they move upward, they begin to fill with keratin and eventually die, forming a layer of dead cells that make up the outermost layer of the epidermis.
In summary, keratin is the protein deposited in the dead superficial cells that make the skin epithelium impervious to water. It forms a protective barrier that prevents water and other substances from penetrating the skin.