the top layer; the epidermis
Hair cells
It was common belief that rhinoceros horns were made of compressed hair, but that has been dispelled. Rhino horn is mostly keratin, and the core of it is made from dense mineral deposits of calcium and melanin.
'Keratin' is a structural protein, which our hair, nails, and animal horns are mostly made from.
Fingernails are made of a special kind of protein called keratin, the same kind of stuff that a cow's hoofs and horns are made of. There are many different kinds of proteins. You need the protein of meat or milk or plant seeds in your diet. But don't chew your fingernails. You can't digest the keratin protein. Keratin is made of dead cells, so is your hair and your first layer of skin! It sounds gross, but I wouldn't change it, though!
S. corneum - all or mostly dead cells cells are dead, flat, "bags" of keratin
Hair cells
The epidermis of the skin is mostly made of a protein called keratin.
The epidermis of the skin is mostly made of a protein called keratin.
Finger and toe nails are composed mostly of a fibrous protein called keratin.
Hair is composed mostly of a protein called keratin. Like all proteins, keratin is composed mainly of the elements carbon, hydrogen, oxygen, and nitrogen.
its mostly made of protein: keratin and some melanin
Yes, it's made up of mostly keratin.
Hair is composed mostly of a protein called keratin. No metabolism takes place in hair. It is therefore not alive. It is merely a secretion.
The primary component of human fingernails is the protein keratin. Secondarily, the cutaneous tips contain carbon, nitrogen and sulfur.
The same thing that human fingernails and animal hooves are made of, a protein called keratin.
It was common belief that rhinoceros horns were made of compressed hair, but that has been dispelled. Rhino horn is mostly keratin, and the core of it is made from dense mineral deposits of calcium and melanin.
'Keratin' is a structural protein, which our hair, nails, and animal horns are mostly made from.